path: root/epan/dissectors/packet-dhcp.c

/* packet-dhcp.c
 * Routines for DHCP/BOOTP packet disassembly
 *
 * Copyright 1998, Gilbert Ramirez <gram@alumni.rice.edu>
 * Copyright 2004, Thomas Anders <thomas.anders [AT] blue-cable.de>
 *
 * Added option field filters
 * Copyright 2011, Michael Mann
 *
 * Added option	 77 : RFC 3004 - The User Class Option for DHCP
 * Added option 117 : RFC 2937 - The Name Service Search Option for DHCP
 * Added option 119 : RFC 3397 - Dynamic Host Configuration Protocol (DHCP) Domain Search Option
 *		      RFC 3396 - Encoding Long Options in the Dynamic Host Configuration Protocol (DHCPv4)
 * Improved opt 120 : Add support of RFC 3396 - Encoding Long Options in the Dynamic Host Configuration Protocol (DHCPv4)
 *		      Add support compression according to the encoding in Section 4.1.4 of RFC 1035 - DOMAIN NAMES - IMPLEMENTATION AND SPECIFICATION
 *
 *
 * Copyright 2012, Jerome LAFORGE <jerome.laforge [AT] gmail.com>
 *
 * The information used comes from:
 * RFC	951: Bootstrap Protocol
 * RFC 1035: Domain Names - Implementation And Specification
 * RFC 1497: BOOTP extensions
 * RFC 1542: Clarifications and Extensions for the Bootstrap Protocol
 * RFC 2131: Dynamic Host Configuration Protocol
 * RFC 2132: DHCP Options and BOOTP Vendor Extensions
 * RFC 2241: DHCP Options for Novell Directory Services
 * RFC 2242: NetWare/IP Domain Name and Information
 * RFC 2489: Procedure for Defining New DHCP Options
 * RFC 2610: DHCP Options for Service Location Protocol
 * RFC 2685: Virtual Private Networks Identifier
 * RFC 2937: The Name Service Search Option for DHCP
 * RFC 3004: The User Class Option for DHCP
 * RFC 3046: DHCP Relay Agent Information Option
 * RFC 3118: Authentication for DHCP Messages
 * RFC 3203: DHCP reconfigure extension
 * RFC 3315: Dynamic Host Configuration Protocol for IPv6 (DHCPv6)
 * RFC 3396: Encoding Long Options in the Dynamic Host Configuration Protocol (DHCPv4)
 * RFC 3397: Dynamic Host Configuration Protocol (DHCP) Domain Search Option
 * RFC 3495: DHCP Option (122) for CableLabs Client Configuration
 * RFC 3594: PacketCable Security Ticket Control Sub-Option (122.9)
 * RFC 3442: Classless Static Route Option for DHCP version 4
 * RFC 3825: Dynamic Host Configuration Protocol Option for Coordinate-based Location Configuration Information
 * RFC 3925: Vendor-Identifying Vendor Options for Dynamic Host Configuration Protocol version 4 (DHCPv4)
 * RFC 3942: Reclassifying DHCPv4 Options
 * RFC 4174: The IPv4 Dynamic Host Configuration Protocol (DHCP) Option for the Internet Storage Name Service
 * RFC 4243: Vendor-Specific Information Suboption for the Dynamic Host Configuration Protocol (DHCP) Relay Agent Option
 * RFC 4361: Node-specific Client Identifiers for Dynamic Host Configuration Protocol Version Four (DHCPv4)
 * RFC 4388: Dynamic Host Configuration Protocol (DHCP) Leasequery
 * RFC 4578: Dynamic Host Configuration Protocol (DHCP) Options for PXE
 * RFC 4776: Dynamic Host Configuration Protocol (DHCPv4 and DHCPv6) Option for Civic Addresses Configuration Information
 * RFC 5192: DHCP Options for Protocol for Carrying Authentication for Network Access (PANA) Authentication Agent
 * RFC 5223: Discovering Location-to-Service Translation (LoST) Servers Using the Dynamic Host Configuration Protocol (DHCP)
 * RFC 5417: CAPWAP Access Controller DHCP Option
 * RFC 5969: IPv6 Rapid Deployment on IPv4 Infrastructures (6rd)
 * RFC 6225: Dynamic Host Configuration Protocol Options for Coordinate-Based Location Configuration Information
 * RFC 6607: Virtual Subnet Selection Options for DHCPv4 and DHCPv6
 * RFC 6704: Forcerenew Nonce Authentication
 * RFC 6731: Improved Recursive DNS Server Selection for Multi-Interfaced Nodes
 * RFC 6926: DHCPv4 Bulk Leasequery
 * RFC 7291: DHCP Options for the Port Control Protocol (PCP)
 * RFC 7618: Dynamic Allocation of Shared IPv4 Addresses
 * RFC 7710: Captive-Portal Identification Using DHCP or Router Advertisements (RAs)
 * RFC 7839: Access-Network-Identifier Option in DHCP
 * RFC 8357: Generalized UDP Source Port for DHCP Relay
 * RFC 8910: Captive-Portal Identification in DHCP and Router Advertisements (RAs)
 * RFC 8925: IPv6-Only Preferred Option for DHCPv4
 * draft-ietf-dhc-fqdn-option-07.txt
 * TFTP Server Address Option for DHCPv4 [draft-raj-dhc-tftp-addr-option-06.txt: https://tools.ietf.org/html/draft-raj-dhc-tftp-addr-option-06]
 * BOOTP and DHCP Parameters
 *     https://www.iana.org/assignments/bootp-dhcp-parameters
 * DOCSIS(TM) 2.0 Radio Frequency Interface Specification
 *     https://specification-search.cablelabs.com/radio-frequency-interface-specification-2
 * DOCSIS(TM) 3.0 MAC and Upper Layer Protocols Interface Specification
 *     https://specification-search.cablelabs.com/CM-SP-MULPIv3.0
 * PacketCable(TM) 1.0 MTA Device Provisioning Specification
 *     https://specification-search.cablelabs.com/packetcable-mta-device-provisioning-specification
 * PacketCable(TM) 1.5 MTA Device Provisioning Specification
 *     https://specification-search.cablelabs.com/packetcable-1-5-mta-device-provisioning-specification
 * PacketCable(TM) 2.0 E-UE Device Provisioning Data Model Specification
 *     https://specification-search.cablelabs.com/e-ue-provisioning-data-model-specification
 * Business Services over DOCSIS(R) Layer 2 Virtual Private Networks
 *     https://specification-search.cablelabs.com/business-services-over-docsis-layer-2-virtual-private-networks
 * CableHome(TM) 1.1 Specification
 *     https://web.archive.org/web/20060628173459/http://www.cablelabs.com/projects/cablehome/downloads/specs/CH-SP-CH1.1-I11-060407.pdf
 * Broadband Forum TR-111
 *     https://web.archive.org/web/20150307135117/http://www.broadband-forum.org/technical/download/TR-111.pdf
 * Boot Server Discovery Protocol (BSDP)
 *     https://opensource.apple.com/source/bootp/bootp-198.1/Documentation/BSDP.doc
 * [MS-DHCPE] DHCPv4 Option Code 77 (0x4D) - User Class Option
 *     https://learn.microsoft.com/en-us/openspecs/windows_protocols/ms-dhcpe/fe8a2dd4-1e8c-4546-bacd-4ae10de02058
 *
 *  * Copyright 2023, Colin McInnes <colin.mcinnes [AT] vecima.com>
 * Added additional CableLabs Vendor Class IDs (Option 60) to CableLabs heuristic from:
 * Remote PHY Specification
 *     https://www.cablelabs.com/specifications/CM-SP-R-PHY
 * Flexible MAC Architecture System Specification
 *     https://www.cablelabs.com/specifications/CM-SP-FMA-SYS
 * Data-Over-Cable Service Interface Specifications, eDOCSIS Specification
 *     https://www.cablelabs.com/specifications/CM-SP-eDOCSIS
 * Data-Over-Cable Service Interface Specifications, IPv4 and IPv6 eRouter Specification
 *     https://www.cablelabs.com/specifications/CM-SP-eRouter
 * OpenCable Tuning Resolver Interface Specification
 *     https://www.cablelabs.com/specifications/OC-SP-TRIF
 * DPoE Demarcation Device Specification
 *     https://www.cablelabs.com/specifications/DPoE-SP-DEMARCv1.0
 *
 * Wireshark - Network traffic analyzer
 * By Gerald Combs <gerald@wireshark.org>
 * Copyright 1998 Gerald Combs
 *
 * SPDX-License-Identifier: GPL-2.0-or-later
 */

/*
 * Some of the development of the DHCP/BOOTP protocol decoder was sponsored by
 * Cable Television Laboratories, Inc. ("CableLabs") based upon proprietary
 * CableLabs' specifications. Your license and use of this protocol decoder
 * does not mean that you are licensed to use the CableLabs'
 * specifications.  If you have questions about this protocol, contact
 * jf.mule [AT] cablelabs.com or c.stuart [AT] cablelabs.com for additional
 * information.
 */


#include "config.h"

#include <stdio.h>		/* for sscanf() */

#include <epan/packet.h>
#include <epan/exceptions.h>
#include "packet-arp.h"
#include "packet-dns.h"				/* for get_dns_name() */
#include <epan/addr_resolv.h>
#include <epan/prefs.h>
#include <epan/tap.h>
#include <epan/stat_tap_ui.h>
#include <epan/arptypes.h>
#include <epan/addr_resolv.h>
#include <epan/expert.h>
#include <epan/uat.h>
#include <epan/strutil.h>
#include <epan/sminmpec.h>
#include <wsutil/str_util.h>
#include <wsutil/strtoi.h>
void proto_register_dhcp(void);
void proto_reg_handoff_dhcp(void);

static int dhcp_bootp_tap = -1;
static int proto_dhcp = -1;
static int hf_dhcp_type = -1;
static int hf_dhcp_hw_type = -1;
static int hf_dhcp_hw_len = -1;
static int hf_dhcp_hops = -1;
static int hf_dhcp_id = -1;
static int hf_dhcp_secs = -1;
static int hf_dhcp_flags = -1;
static int hf_dhcp_flags_broadcast = -1;
static int hf_dhcp_flags_reserved = -1;
static int hf_dhcp_ip_client = -1;
static int hf_dhcp_ip_your = -1;
static int hf_dhcp_ip_server = -1;
static int hf_dhcp_ip_relay = -1;
static int hf_dhcp_hw_addr = -1;
static int hf_dhcp_hw_addr_padding = -1;
static int hf_dhcp_hw_ether_addr = -1;
static int hf_dhcp_server = -1;
static int hf_dhcp_file = -1;
static int hf_dhcp_cookie = -1;
static int hf_dhcp_vendor_specific_options = -1;
static int hf_dhcp_bootp = -1;
static int hf_dhcp_fqdn_flags = -1;
static int hf_dhcp_fqdn_s = -1;
static int hf_dhcp_fqdn_o = -1;
static int hf_dhcp_fqdn_e = -1;
static int hf_dhcp_fqdn_n = -1;
static int hf_dhcp_fqdn_mbz = -1;
static int hf_dhcp_fqdn_rcode1 = -1;
static int hf_dhcp_fqdn_rcode2 = -1;
static int hf_dhcp_fqdn_name = -1;
static int hf_dhcp_fqdn_asciiname = -1;
static int hf_dhcp_pkt_mta_cap_len = -1;
static int hf_dhcp_pkt_mta_cap_type = -1;
static int hf_dhcp_docsis_cm_cap_type = -1;
static int hf_dhcp_docsis_cm_cap_len = -1;
static int hf_dhcp_client_identifier_uuid = -1;
static int hf_dhcp_client_id_iaid = -1;
static int hf_dhcp_client_id_duid_type = -1;
static int hf_dhcp_client_hardware_address = -1;
static int hf_dhcp_client_identifier_duid_llt_hw_type = -1;
static int hf_dhcp_client_identifier_duid_ll_hw_type = -1;
static int hf_dhcp_client_identifier_time = -1;
static int hf_dhcp_client_identifier_link_layer_address = -1;
static int hf_dhcp_client_identifier_link_layer_address_ether = -1;
static int hf_dhcp_client_identifier_enterprise_num = -1;
static int hf_dhcp_client_identifier = -1;
static int hf_dhcp_client_identifier_type = -1;
static int hf_dhcp_client_identifier_undef = -1;
static int hf_dhcp_option_type = -1;
static int hf_dhcp_option_length = -1;
static int hf_dhcp_option_value = -1;
static int hf_dhcp_option_value_8 = -1;
static int hf_dhcp_option_value_16 = -1;
static int hf_dhcp_option_value_u32 = -1;
static int hf_dhcp_option_value_s_secs = -1;
static int hf_dhcp_option_value_u_secs = -1;
static int hf_dhcp_option_value_stringz = -1;
static int hf_dhcp_option_value_ip_address = -1;
static int hf_dhcp_option_value_boolean = -1;
static int hf_dhcp_suboption_length = -1;

static int hf_dhcp_option_padding = -1;					/* 0 */
static int hf_dhcp_option_subnet_mask = -1;				/* 1 */
static int hf_dhcp_option_time_offset = -1;				/* 2 */
static int hf_dhcp_option_router = -1;					/* 3 */
static int hf_dhcp_option_time_server = -1;				/* 4 */
static int hf_dhcp_option_name_server = -1;				/* 5 */
static int hf_dhcp_option_domain_name_server = -1;			/* 6 */
static int hf_dhcp_option_log_server = -1;				/* 7 */
static int hf_dhcp_option_quotes_server = -1;				/* 8 */
static int hf_dhcp_option_lpr_server = -1;				/* 9 */
static int hf_dhcp_option_impress_server = -1;				/* 10 */
static int hf_dhcp_option_resource_location_server = -1;		/* 11 */
static int hf_dhcp_option_hostname = -1;				/* 12 */
static int hf_dhcp_option_boot_file_size = -1;				/* 13 */
static int hf_dhcp_option_merit_dump_file = -1;				/* 14 */
static int hf_dhcp_option_domain_name = -1;				/* 15 */
static int hf_dhcp_option_swap_server = -1;				/* 16 */
static int hf_dhcp_option_root_path = -1;				/* 17 */
static int hf_dhcp_option_extension_path = -1;				/* 18 */
static int hf_dhcp_option_ip_forwarding = -1;				/* 19 */
static int hf_dhcp_option_non_local_source_routing = -1;		/* 20 */
static int hf_dhcp_option_policy_filter_ip = -1;			/* 21 - IP address */
static int hf_dhcp_option_policy_filter_subnet_mask = -1;		/* 21 - Subnet mask */
static int hf_dhcp_option_max_datagram_reassembly_size = -1;		/* 22 */
static int hf_dhcp_option_default_ip_ttl = -1;				/* 23 */
static int hf_dhcp_option_path_mtu_aging_timeout = -1;			/* 24 */
static int hf_dhcp_option_path_mtu_plateau_table_item = -1;		/* 25 */
static int hf_dhcp_option_interface_mtu = -1;				/* 26 */
static int hf_dhcp_option_all_subnets_are_local = -1;			/* 27 */
static int hf_dhcp_option_broadcast_address = -1;			/* 28 */
static int hf_dhcp_option_perform_mask_discovery = -1;			/* 29 */
static int hf_dhcp_option_mask_supplier = -1;				/* 30 */
static int hf_dhcp_option_perform_router_discover = -1;			/* 31 */
static int hf_dhcp_option_router_solicitation_address = -1;		/* 32 */
static int hf_dhcp_option_static_route_ip = -1;				/* 33 - Destination IP */
static int hf_dhcp_option_static_route_router = -1;			/* 33 - Router */
static int hf_dhcp_option_trailer_encapsulation = -1;			/* 34 */
static int hf_dhcp_option_arp_cache_timeout = -1;			/* 35 */
static int hf_dhcp_option_ethernet_encapsulation = -1;			/* 36 */
static int hf_dhcp_option_tcp_default_ttl = -1;				/* 37 */
static int hf_dhcp_option_tcp_keepalive_interval = -1;			/* 38 */
static int hf_dhcp_option_tcp_keepalive_garbage = -1;			/* 39 */
static int hf_dhcp_option_nis_domain = -1;				/* 40 */
static int hf_dhcp_option_nis_server = -1;				/* 41 */
static int hf_dhcp_option_ntp_server = -1;				/* 42 */

static int hf_dhcp_option43_value = -1;					/* 43 suboption value */
static int hf_dhcp_option43_value_8 = -1;				/* 43 suboption value */
static int hf_dhcp_option43_value_32 = -1;				/* 43 suboption value */
static int hf_dhcp_option43_value_stringz = -1;				/* 43 suboption value */
static int hf_dhcp_option43_value_ip_address = -1;			/* 43 suboption value */

static int hf_dhcp_option43_pxeclient_suboption = -1;			/* 43 suboption */
static int hf_dhcp_option43_pxeclient_padding = -1;			/* 43:0 PXE  */
static int hf_dhcp_option43_pxeclient_mtftp_ip = -1;			/* 43:1 PXE  */
static int hf_dhcp_option43_pxeclient_mtftp_client_port = -1;		/* 43:2 PXE  */
static int hf_dhcp_option43_pxeclient_mtftp_server_port = -1;		/* 43:3 PXE  */
static int hf_dhcp_option43_pxeclient_mtftp_timeout = -1;		/* 43:4 PXE  */
static int hf_dhcp_option43_pxeclient_mtftp_delay = -1;			/* 43:5 PXE  */
static int hf_dhcp_option43_pxeclient_discovery_control = -1;		/* 43:6 PXE  */
static int hf_dhcp_option43_pxeclient_discovery_control_bc = -1;	/* 43:6 PXE  */
static int hf_dhcp_option43_pxeclient_discovery_control_mc = -1;	/* 43:6 PXE  */
static int hf_dhcp_option43_pxeclient_discovery_control_serverlist = -1;	/* 43:6 PXE  */
static int hf_dhcp_option43_pxeclient_discovery_control_bstrap = -1;	/* 43:6 PXE  */
static int hf_dhcp_option43_pxeclient_multicast_address = -1;		/* 43:7 PXE  */
static int hf_dhcp_option43_pxeclient_boot_servers = -1;		/* 43:8 PXE  */
static int hf_dhcp_option43_pxeclient_boot_server_type = -1;		/* 43:8 PXE  */
static int hf_dhcp_option43_pxeclient_boot_server_count = -1;		/* 43:8 PXE  */
static int hf_dhcp_option43_pxeclient_boot_server_ip = -1;		/* 43:8 PXE  */
static int hf_dhcp_option43_pxeclient_boot_menu = -1;			/* 43:9 PXE  */
static int hf_dhcp_option43_pxeclient_boot_menu_type = -1;		/* 43:9 PXE  */
static int hf_dhcp_option43_pxeclient_boot_menu_length = -1;		/* 43:9 PXE  */
static int hf_dhcp_option43_pxeclient_boot_menu_desc = -1;		/* 43:9 PXE  */
static int hf_dhcp_option43_pxeclient_menu_prompt = -1;			/* 43:10 PXE  */
static int hf_dhcp_option43_pxeclient_menu_prompt_timeout = -1;		/* 43:10 PXE  */
static int hf_dhcp_option43_pxeclient_menu_prompt_prompt = -1;		/* 43:10 PXE  */
static int hf_dhcp_option43_pxeclient_multicast_address_alloc = -1;	/* 43:11 PXE  */
static int hf_dhcp_option43_pxeclient_credential_types = -1;		/* 43:12 PXE  */
static int hf_dhcp_option43_pxeclient_boot_item = -1;			/* 43:71 PXE  */
static int hf_dhcp_option43_pxeclient_boot_item_type = -1;		/* 43:71 PXE  */
static int hf_dhcp_option43_pxeclient_boot_item_layer = -1;		/* 43:71 PXE  */
static int hf_dhcp_option43_pxeclient_lcm_server = -1;			/* 43:179 PXE  */
static int hf_dhcp_option43_pxeclient_lcm_domain = -1;			/* 43:180 PXE  */
static int hf_dhcp_option43_pxeclient_lcm_nic_option = -1;		/* 43:181 PXE  */
static int hf_dhcp_option43_pxeclient_lcm_workgroup = -1;		/* 43:190 PXE  */
static int hf_dhcp_option43_pxeclient_discovery = -1;			/* 43:191 PXE  */
static int hf_dhcp_option43_pxeclient_configured = -1;			/* 43:192 PXE  */
static int hf_dhcp_option43_pxeclient_lcm_version = -1;			/* 43:193 PXE  */
static int hf_dhcp_option43_pxeclient_lcm_serial = -1;			/* 43:194 PXE  */
static int hf_dhcp_option43_pxeclient_end = -1;				/* 43:255 PXE */

static int hf_dhcp_option43_cl_suboption = -1;				/* 43 suboption */
static int hf_dhcp_option43_cl_padding = -1;				/* 43:0 CL  */
static int hf_dhcp_option43_cl_suboption_request_list = -1;		/* 43:1 CL  */
static int hf_dhcp_option43_cl_device_type = -1;			/* 43:2 CL  */
static int hf_dhcp_option43_cl_esafe_type = -1;				/* 43:3 CL  */
static int hf_dhcp_option43_cl_serial_number = -1;			/* 43:4 CL  */
static int hf_dhcp_option43_cl_hardware_version = -1;			/* 43:5 CL  */
static int hf_dhcp_option43_cl_software_version = -1;			/* 43:6 CL  */
static int hf_dhcp_option43_cl_boot_rom_version = -1;			/* 43:7 CL  */
static int hf_dhcp_option43_cl_oui_bytes = -1;				/* 43:8 CL  */
static int hf_dhcp_option43_cl_oui_string = -1;				/* 43:8 CL  */
static int hf_dhcp_option43_cl_model_number = -1;			/* 43:9 CL  */
static int hf_dhcp_option43_cl_vendor_name10 = -1;			/* 43:10 CL  */
static int hf_dhcp_option43_cl_address_realm = -1;			/* 43:11 CL  */
static int hf_dhcp_option43_cl_cm_ps_system_desc = -1;			/* 43:12 CL  */
static int hf_dhcp_option43_cl_cm_ps_firmware_revision = -1;		/* 43:13 CL  */
static int hf_dhcp_option43_cl_firewall_policy_file_version = -1;	/* 43:14 CL  */
static int hf_dhcp_option43_cl_esafe_config_file_devices = -1;		/* 43:15 CL  */
static int hf_dhcp_option43_cl_video_security_tape = -1;		/* 43:18 CL  */
static int hf_dhcp_option43_cl_mta_mac_address = -1;			/* 43:31 CL  */
static int hf_dhcp_option43_cl_correlation_ID = -1;			/* 43:32 CL  */
static int hf_dhcp_option43_cl_vendor_name51 = -1;			/* 43:51 CL  */
static int hf_dhcp_option43_cl_cablecard_capability = -1;		/* 43:52 CL  */
static int hf_dhcp_option43_cl_device_id_ca = -1;			/* 43:53 CL  */
static int hf_dhcp_option43_cl_device_id_x509 = -1;			/* 43:54 CL  */
static int hf_dhcp_option43_cl_end = -1;				/* 43:255 CL */

static int hf_dhcp_option43_aerohive_suboption = -1;			/* 43 suboption */
static int hf_dhcp_option43_aerohive_unknown = -1;			/* 43:X AEROHIVE */
static int hf_dhcp_option43_aerohive_xiqhostname = -1;			/* 43:225 AEROHIVE */
static int hf_dhcp_option43_aerohive_xiqipaddress = -1;			/* 43:226 AEROHIVE */

static int hf_dhcp_option43_bsdp_suboption = -1;			/* 43 suboption */
static int hf_dhcp_option43_bsdp_message_type = -1;			/* 43:1 BSDP  */
static int hf_dhcp_option43_bsdp_version = -1;				/* 43:2 BSDP  */
static int hf_dhcp_option43_bsdp_server_identifier = -1;		/* 43:3 BSDP  */
static int hf_dhcp_option43_bsdp_server_priority = -1;			/* 43:4 BSDP  */
static int hf_dhcp_option43_bsdp_reply_port = -1;			/* 43:5 BSDP  */
static int hf_dhcp_option43_bsdp_boot_image_list_path = -1;		/* 43:6 BSDP  */
static int hf_dhcp_option43_bsdp_default_boot_image_id = -1;		/* 43:7 BSDP  */
static int hf_dhcp_option43_bsdp_selected_boot_image_id = -1;		/* 43:8 BSDP  */
static int hf_dhcp_option43_bsdp_boot_image_list = -1;			/* 43:9 BSDP  */
static int hf_dhcp_option43_bsdp_netboot_firmware = -1;			/* 43:10 BSDP  */
static int hf_dhcp_option43_bsdp_attributes_filter_list = -1;		/* 43:11 BSDP  */
static int hf_dhcp_option43_bsdp_message_size = -1;			/* 43:12 BSDP  */
static int hf_dhcp_option43_bsdp_boot_image_index = -1;			/* 43 BSDP  */
static int hf_dhcp_option43_bsdp_boot_image_attribute = -1;		/* 43 BSDP  */
static int hf_dhcp_option43_bsdp_boot_image_attribute_install = -1;	/* 43 BSDP  */
static int hf_dhcp_option43_bsdp_boot_image_attribute_kind = -1;	/* 43 BSDP  */
static int hf_dhcp_option43_bsdp_boot_image_attribute_reserved = -1;	/* 43 BSDP  */
static int hf_dhcp_option43_bsdp_image_desc = -1;			/* 43 BSDP  */
static int hf_dhcp_option43_bsdp_boot_image_name = -1;			/* 43 BSDP  */
static int hf_dhcp_option43_bsdp_boot_image_name_len = -1;		/* 43 BSDP  */

static int hf_dhcp_option43_cisco_suboption = -1;			/* 43 Cisco */
static int hf_dhcp_option43_cisco_unknown = -1;				/* 43 Cisco */
static int hf_dhcp_option43_cisco_unknown1 = -1;			/* 43:1 Cisco */
static int hf_dhcp_option43_cisco_unknown2 = -1;			/* 43:2 Cisco */
static int hf_dhcp_option43_cisco_unknown3 = -1;			/* 43:3 Cisco */
static int hf_dhcp_option43_cisco_nodeid = -1;				/* 43:4 Cisco */
static int hf_dhcp_option43_cisco_unknown5 = -1;			/* 43:5 Cisco */
static int hf_dhcp_option43_cisco_unknown6 = -1;			/* 43:6 Cisco */
static int hf_dhcp_option43_cisco_model = -1;				/* 43:7 Cisco */
static int hf_dhcp_option43_cisco_apicuuid = -1;			/* 43:8 Cisco */
static int hf_dhcp_option43_cisco_fabricname = -1;			/* 43:9 Cisco */
static int hf_dhcp_option43_cisco_unknown10 = -1;			/* 43:10 Cisco */
static int hf_dhcp_option43_cisco_serialno = -1;			/* 43:11 Cisco */
static int hf_dhcp_option43_cisco_clientint = -1;			/* 43:12 Cisco */

static int hf_dhcp_option43_alcatel_suboption = -1;			/* 43 suboption */
static int hf_dhcp_option43_alcatel_padding = -1;			/* 43:0 Alcatel	 */
static int hf_dhcp_option43_alcatel_vlan_id = -1;			/* 43:58 Alcatel  */
static int hf_dhcp_option43_alcatel_tftp1 = -1;				/* 43:64 Alcatel  */
static int hf_dhcp_option43_alcatel_tftp2 = -1;				/* 43:65 Alcatel  */
static int hf_dhcp_option43_alcatel_app_type = -1;			/* 43:66 Alcatel  */
static int hf_dhcp_option43_alcatel_sip_url = -1;			/* 43:67 Alcatel  */
static int hf_dhcp_option43_alcatel_end = -1;				/* 43:255 Alcatel */

static int hf_dhcp_option43_arubaap_controllerip = -1;			/* 43: ArubaAP*/
static int hf_dhcp_option43_arubaiap = -1;				/* 43: ArubaIAP*/
static int hf_dhcp_option43_arubaiap_nameorg = -1;			/* 43: ArubaIAP: Name Organisation*/
static int hf_dhcp_option43_arubaiap_ampip = -1;			/* 43: ArubaIAP: AMP IP Address*/
static int hf_dhcp_option43_arubaiap_password = -1;			/* 43 :ArubaIAP: Password*/

static int hf_dhcp_option_netbios_over_tcpip_name_server = -1;		/* 44 */
static int hf_dhcp_option_netbios_over_tcpip_dd_name_server = -1;	/* 45 */
static int hf_dhcp_option_netbios_over_tcpip_node_type = -1;		/* 46 */
static int hf_dhcp_option_netbios_over_tcpip_scope = -1;		/* 47 */
static int hf_dhcp_option_xwindows_system_font_server = -1;		/* 48 */
static int hf_dhcp_option_xwindows_system_display_manager = -1;		/* 49 */
static int hf_dhcp_option_requested_ip_address = -1;			/* 50 */
static int hf_dhcp_option_ip_address_lease_time = -1;			/* 51 */
static int hf_dhcp_option_option_overload = -1;				/* 52 */
static int hf_dhcp_option_dhcp = -1;					/* 53 */
static int hf_dhcp_option_dhcp_server_id = -1;				/* 54 */
static int hf_dhcp_option_parameter_request_list_item = -1;		/* 55 */
static int hf_dhcp_option_message = -1;					/* 56 */
static int hf_dhcp_option_dhcp_max_message_size = -1;			/* 57 */
static int hf_dhcp_option_renewal_time_value = -1;			/* 58 */
static int hf_dhcp_option_rebinding_time_value = -1;			/* 59 */
static int hf_dhcp_option_vendor_class_id = -1;				/* 60 */
static int hf_dhcp_option_vendor_class_data = -1;			/* 60 */

static int hf_dhcp_option_novell_netware_ip_domain = -1;		/* 62 */

static int hf_dhcp_option63_suboption = -1;				/* 63 suboption */
static int hf_dhcp_option63_value = -1;					/* 63 suboption value */
static int hf_dhcp_option63_value_8 = -1;				/* 63 suboption value */
static int hf_dhcp_option63_value_ip_address = -1;			/* 63 suboption value */
static int hf_dhcp_option63_value_boolean = -1;				/* 63 suboption value */
static int hf_dhcp_option63_broadcast = -1;				/* 63:5 */
static int hf_dhcp_option63_preferred_dss_server = -1;			/* 63:6 */
static int hf_dhcp_option63_nearest_nwip_server = -1;			/* 63:7 */
static int hf_dhcp_option63_autoretries = -1;				/* 63:8 */
static int hf_dhcp_option63_autoretry_delay = -1;			/* 63:9 */
static int hf_dhcp_option63_support_netware_v1_1 = -1;			/* 63:10 */
static int hf_dhcp_option63_primary_dss = -1;				/* 63:11 */

static int hf_dhcp_option_nis_plus_domain = -1;				/* 64 */
static int hf_dhcp_option_nis_plus_server = -1;				/* 65 */
static int hf_dhcp_option_tftp_server_name = -1;			/* 66 */
static int hf_dhcp_option_bootfile_name = -1;				/* 67 */
static int hf_dhcp_option_mobile_ip_home_agent = -1;			/* 68 */
static int hf_dhcp_option_smtp_server = -1;				/* 69 */
static int hf_dhcp_option_pop3_server = -1;				/* 70 */
static int hf_dhcp_option_nntp_server = -1;				/* 71 */
static int hf_dhcp_option_default_www_server = -1;			/* 72 */
static int hf_dhcp_option_default_finger_server = -1;			/* 73 */
static int hf_dhcp_option_default_irc_server = -1;			/* 74 */
static int hf_dhcp_option_streettalk_server = -1;			/* 75 */
static int hf_dhcp_option_streettalk_da_server = -1;			/* 76 */
static int hf_dhcp_option77_user_class = -1;				/* 77 User Class instance */
static int hf_dhcp_option77_user_class_length = -1;			/* 77 length of User Class instance */
static int hf_dhcp_option77_user_class_data = -1;			/* 77 data of User Class instance */
static int hf_dhcp_option77_user_class_text = -1;			/* 77 User class text */
static int hf_dhcp_option77_user_class_binary_data_length = -1;	/* 77, Microsoft */
static int hf_dhcp_option77_user_class_binary_data = -1;		/* 77, Microsoft */
static int hf_dhcp_option77_user_class_padding = -1;			/* 77, Microsoft */
static int hf_dhcp_option77_user_class_name_length = -1;		/* 77, Microsoft */
static int hf_dhcp_option77_user_class_name = -1;				/* 77, Microsoft */
static int hf_dhcp_option77_user_class_description_length = -1;	/* 77, Microsoft */
static int hf_dhcp_option77_user_class_description = -1;		/* 77, Microsoft */
static int hf_dhcp_option_slp_directory_agent_value = -1;		/* 78 */
static int hf_dhcp_option_slp_directory_agent_slpda_address = -1;	/* 78 */
static int hf_dhcp_option_slp_service_scope_value = -1;			/* 79 */
static int hf_dhcp_option_slp_service_scope_string = -1;		/* 79 */

static int hf_dhcp_option82_suboption = -1;				/* 82 suboption */
static int hf_dhcp_option82_value = -1;					/* 82 suboption value */
static int hf_dhcp_option82_value_8 = -1;				/* 82 suboption value */
static int hf_dhcp_option82_value_16 = -1;				/* 82 suboption value */
static int hf_dhcp_option82_value_32 = -1;				/* 82 suboption value */
static int hf_dhcp_option82_value_ip_address = -1;			/* 82 suboption value */
static int hf_dhcp_option82_value_stringz = -1;				/* 82 suboption value */
static int hf_dhcp_option82_padding = -1;				/* 82:0 */
static int hf_dhcp_option82_agent_circuit_id = -1;			/* 82:1 */
static int hf_dhcp_option82_agent_remote_id = -1;			/* 82:2 */
static int hf_dhcp_option82_reserved = -1;				/* 82:3 */
static int hf_dhcp_option82_docsis_device_class = -1;			/* 82:4 */
static int hf_dhcp_option82_link_selection = -1;			/* 82:5 */
static int hf_dhcp_option82_subscriber_id = -1;				/* 82:6 */
static int hf_dhcp_option82_radius_attributes = -1;			/* 82:7 */
static int hf_dhcp_option82_authentication = -1;			/* 82:8 */
static int hf_dhcp_option82_vi = -1;					/* 82:9 */
									/* 82:9 suboptions */
static int hf_dhcp_option82_vi_enterprise = -1;
static int hf_dhcp_option82_vi_data_length = -1;
static int hf_dhcp_option82_vi_cl_docsis_version = -1;			/* 82:9:4491:1 */
static int hf_dhcp_option82_vi_cl_dpoe_system_version = -1;		/* 82:9:4491:2 */
static int hf_dhcp_option82_vi_cl_dpoe_system_pbb_service = -1;		/* 82:9:4491:4 */
static int hf_dhcp_option82_vi_cl_service_class_name = -1;		/* 82:9:4491:5 */
static int hf_dhcp_option82_vi_cl_mso_defined_text = -1;		/* 82:9:4491:6 */
static int hf_dhcp_option82_vi_cl_secure_file_transfer_uri = -1;	/* 82:9:4491:7 */
									/* 82:9 suboptions end */
static int hf_dhcp_option82_flags = -1;					/* 82:10 */
static int hf_dhcp_option82_server_id_override = -1;			/* 82:11 */
static int hf_dhcp_option82_relay_agent_id = -1;			/* 82:12 */
static int hf_dhcp_option82_option_ani_att = -1;			/* 82:13 */
static int hf_dhcp_option82_option_ani_att_res = -1;
static int hf_dhcp_option82_option_ani_att_att = -1;
static int hf_dhcp_option82_option_ani_network_name = -1;		/* 82:14 */
static int hf_dhcp_option82_option_ani_ap_name = -1;			/* 82:15 */
static int hf_dhcp_option82_option_ani_ap_bssid = -1;			/* 82:16 */
static int hf_dhcp_option82_option_ani_operator_id = -1;		/* 82:17 */
static int hf_dhcp_option82_option_ani_operator_realm = -1;		/* 82:18 */
static int hf_dhcp_option82_option_source_port = -1;			/* 82:19 */
static int hf_dhcp_option82_link_selection_cisco = -1;			/* 82:150 */
static int hf_dhcp_option82_vrf_name_vpn_id = -1;			/* 82:151 */
									/* 82:151 suboptions */
static int hf_dhcp_option82_vrf_name_global = -1;
static int hf_dhcp_option82_vrf_name = -1;
static int hf_dhcp_option82_vrf_name_vpn_id_oui = -1;
static int hf_dhcp_option82_vrf_name_vpn_id_index = -1;
									/* 82:151 suboptions end */
static int hf_dhcp_option82_server_id_override_cisco = -1;		/* 82:152 */

static int hf_dhcp_option_isns_functions = -1;
static int hf_dhcp_option_isns_functions_enabled = -1;
static int hf_dhcp_option_isns_functions_dd_authorization = -1;
static int hf_dhcp_option_isns_functions_sec_policy_distibution = -1;
static int hf_dhcp_option_isns_functions_reserved = -1;

static int hf_dhcp_option_isns_discovery_domain_access = -1;
static int hf_dhcp_option_isns_discovery_domain_access_enabled = -1;
static int hf_dhcp_option_isns_discovery_domain_access_control_node = -1;
static int hf_dhcp_option_isns_discovery_domain_access_iscsi_target = -1;
static int hf_dhcp_option_isns_discovery_domain_access_iscsi_inititator = -1;
static int hf_dhcp_option_isns_discovery_domain_access_ifcp_target_port = -1;
static int hf_dhcp_option_isns_discovery_domain_access_ifcp_initiator_port = -1;
static int hf_dhcp_option_isns_discovery_domain_access_reserved = -1;

static int hf_dhcp_option_isns_administrative_flags = -1;
static int hf_dhcp_option_isns_administrative_flags_enabled = -1;
static int hf_dhcp_option_isns_administrative_flags_heartbeat = -1;
static int hf_dhcp_option_isns_administrative_flags_management_scns = -1;
static int hf_dhcp_option_isns_administrative_flags_default_dd = -1;
static int hf_dhcp_option_isns_administrative_flags_reserved = -1;

static int hf_dhcp_option_isns_server_security_bitmap = -1;
static int hf_dhcp_option_isns_server_security_bitmap_enabled = -1;
static int hf_dhcp_option_isns_server_security_bitmap_ike_ipsec_enabled = -1;
static int hf_dhcp_option_isns_server_security_bitmap_main_mode = -1;
static int hf_dhcp_option_isns_server_security_bitmap_aggressive_mode = -1;
static int hf_dhcp_option_isns_server_security_bitmap_pfs = -1;
static int hf_dhcp_option_isns_server_security_bitmap_transport_mode = -1;
static int hf_dhcp_option_isns_server_security_bitmap_tunnel_mode = -1;
static int hf_dhcp_option_isns_server_security_bitmap_reserved = -1;

static int hf_dhcp_option_isns_heartbeat_originator_addr = -1;
static int hf_dhcp_option_isns_primary_server_addr = -1;
static int hf_dhcp_option_isns_secondary_server_addr_list = -1;

static int hf_dhcp_option_novell_dss_string = -1;			/* 85 */
static int hf_dhcp_option_novell_dss_ip = -1;				/* 85 */
static int hf_dhcp_option_novell_ds_tree_name = -1;			/* 86 */
static int hf_dhcp_option_novell_ds_context = -1;			/* 87 */
static int hf_dhcp_option_dhcp_authentication_protocol = -1;		/* 90 */
static int hf_dhcp_option_dhcp_authentication_alg_delay = -1;		/* 90 */
static int hf_dhcp_option_dhcp_authentication_algorithm = -1;		/* 90 */
static int hf_dhcp_option_dhcp_authentication_rdm = -1;			/* 90 */
static int hf_dhcp_option_dhcp_authentication_rdm_replay_detection = -1;   /* 90 */
static int hf_dhcp_option_dhcp_authentication_rdm_rdv = -1;		/* 90 */
static int hf_dhcp_option_dhcp_authentication_secret_id = -1;		/* 90 */
static int hf_dhcp_option_dhcp_authentication_hmac_md5_hash = -1;	/* 90 */
static int hf_dhcp_option_dhcp_authentication_information = -1;		/* 90 */
static int hf_dhcp_option_client_last_transaction_time = -1;		/* 91 */
static int hf_dhcp_option_associated_ip_option = -1;			/* 92 */
static int hf_dhcp_option_client_system_architecture = -1;		/* 93 */
static int hf_dhcp_option_client_network_id_major_ver = -1;		/* 94 */
static int hf_dhcp_option_client_network_id_minor_ver = -1;		/* 94 */
static int hf_dhcp_option_civic_location_what = -1;			/* 99 */
static int hf_dhcp_option_civic_location_country = -1;			/* 99 */
static int hf_dhcp_option_civic_location_ca_type = -1;			/* 99 */
static int hf_dhcp_option_civic_location_ca_length = -1;		/* 99 */
static int hf_dhcp_option_civic_location_ca_value = -1;			/* 99 */
static int hf_dhcp_option_tz_pcode = -1;				/* 100 */
static int hf_dhcp_option_tz_tcode = -1;				/* 101 */
static int hf_dhcp_option_netinfo_parent_server_address = -1;		/* 112 */
static int hf_dhcp_option_netinfo_parent_server_tag = -1;		/* 113 */
static int hf_dhcp_option_captive_portal = -1;				/* 114 (ex 160) */
static int hf_dhcp_option_dhcp_auto_configuration = -1;			/* 116 */
static int hf_dhcp_option_dhcp_name_service_search_option = -1;		/* 117 */
static int hf_dhcp_option_dhcp_dns_domain_search_list_rfc_3396_detected = -1;	/* 119 */
static int hf_dhcp_option_dhcp_dns_domain_search_list_refer_last_option = -1;	/* 119 */
static int hf_dhcp_option_dhcp_dns_domain_search_list_fqdn = -1;		/* 119 */
static int hf_dhcp_option_sip_server_rfc_3396_detected = -1;			/* 120 */
static int hf_dhcp_option_sip_server_refer_last_option = -1;			/* 120 */
static int hf_dhcp_option_sip_server_enc = -1;				/* 120 */
static int hf_dhcp_option_sip_server_name = -1;				/* 120 */
static int hf_dhcp_option_sip_server_address = -1;			/* 120 */
static int hf_dhcp_option_classless_static_route = -1;			/* 120 */
static int hf_dhcp_option_rfc3825_error = -1;				/* 123 */
static int hf_dhcp_option_rfc3825_latitude = -1;			/* 123 */
static int hf_dhcp_option_rfc3825_longitude = -1;			/* 123 */
static int hf_dhcp_option_rfc3825_latitude_res = -1;			/* 123 */
static int hf_dhcp_option_rfc3825_longitude_res = -1;			/* 123 */
static int hf_dhcp_option_rfc3825_altitude = -1;			/* 123 */
static int hf_dhcp_option_rfc3825_altitude_res = -1;			/* 123 */
static int hf_dhcp_option_rfc3825_altitude_type = -1;			/* 123 */
static int hf_dhcp_option_rfc3825_map_datum = -1;			/* 123 */
static int hf_dhcp_option_cl_dss_id_option = -1;			/* 123 CL */
static int hf_dhcp_option_cl_dss_id_len = -1;				/* 123 CL */
static int hf_dhcp_option_cl_dss_id = -1;				/* 123 CL */
static int hf_dhcp_option_vi_class_cl_address_mode = -1;		/* 124 */
static int hf_dhcp_option_vi_class_enterprise = -1;			/* 124 */
static int hf_dhcp_option_vi_class_data_length = -1;			/* 124 */
static int hf_dhcp_option_vi_class_data_item_length = -1;		/* 124 */
static int hf_dhcp_option_vi_class_data_item_data = -1;			/* 124 */

static int hf_dhcp_option125_enterprise = -1;
static int hf_dhcp_option125_length = -1;
static int hf_dhcp_option125_value = -1;				/* 125 suboption value */
static int hf_dhcp_option125_value_8 = -1;				/* 125 suboption value */
static int hf_dhcp_option125_value_16 = -1;				/* 125 suboption value */
static int hf_dhcp_option125_value_ip_address = -1;			/* 125 suboption value */
static int hf_dhcp_option125_value_stringz = -1;			/* 125 suboption value */
static int hf_dhcp_option125_tr111_suboption = -1;			/* 125 suboption */
static int hf_dhcp_option125_tr111_device_manufacturer_oui = -1;	/* 125:TR-111 1 */
static int hf_dhcp_option125_tr111_device_serial_number = -1;		/* 125:TR-111 2 */
static int hf_dhcp_option125_tr111_device_product_class = -1;		/* 125:TR-111 3 */
static int hf_dhcp_option125_tr111_gateway_manufacturer_oui = -1;	/* 125:TR-111 4 */
static int hf_dhcp_option125_tr111_gateway_serial_number = -1;		/* 125:TR-111 5 */
static int hf_dhcp_option125_tr111_gateway_product_class = -1;		/* 125:TR-111 6 */
static int hf_dhcp_option125_cl_suboption = -1;				/* 125 suboption */
static int hf_dhcp_option125_cl_option_request = -1;			/* 125:CL 1 */
static int hf_dhcp_option125_cl_tftp_server_addresses = -1;		/* 125:CL 2 */
static int hf_dhcp_option125_cl_erouter_container_option = -1;		/* 125:CL 3 */
static int hf_dhcp_option125_cl_mib_environment_indicator_option = -1; /* 125:CL 4 */
static int hf_dhcp_option125_cl_modem_capabilities = -1;		/* 125:CL 5 */

static int hf_dhcp_option_subnet_selection_option = -1;			/* 118 */
static int hf_dhcp_option_pana_agent = -1;				/* 136 */
static int hf_dhcp_option_lost_server_domain_name = -1;			/* 137 */
static int hf_dhcp_option_capwap_access_controller = -1;		/* 138 */
static int hf_dhcp_option_andsf_server = -1;				/* 142 */
static int hf_dhcp_option_forcerenew_nonce_algo = -1;			/* 145 */
static int hf_dhcp_option_rdnss_reserved = -1;				/* 146 */
static int hf_dhcp_option_rdnss_pref = -1;				/* 146 */
static int hf_dhcp_option_rdnss_prim_dns_server = -1;			/* 146 */
static int hf_dhcp_option_rdnss_sec_dns_server = -1;			/* 146 */
static int hf_dhcp_option_rdnss_domain = -1;				/* 146 */
static int hf_dhcp_option_tftp_server_address = -1;			/* 150 */
static int hf_dhcp_option_bulk_lease_status_code = -1;			/* 151 */
static int hf_dhcp_option_bulk_lease_status_message = -1;		/* 151 */
static int hf_dhcp_option_bulk_lease_base_time = -1;			/* 152 */
static int hf_dhcp_option_bulk_lease_start_time_of_state = -1;		/* 153 */
static int hf_dhcp_option_bulk_lease_query_start = -1;			/* 154 */
static int hf_dhcp_option_bulk_lease_query_end = -1;			/* 155 */
static int hf_dhcp_option_bulk_lease_dhcp_state = -1;			/* 156 */
static int hf_dhcp_option_bulk_lease_data_source = -1;			/* 157 */
static int hf_dhcp_option_pcp_list_length = -1;				/* 158 */
static int hf_dhcp_option_pcp_server = -1;				/* 158 */
static int hf_dhcp_option_portparams_offset = -1;			/* 159 */
static int hf_dhcp_option_portparams_psid_length = -1;			/* 159 */
static int hf_dhcp_option_portparams_psid = -1;				/* 159 */
static int hf_dhcp_option_mudurl = -1;					/* 161 */
static int hf_dhcp_option_pxe_config_file = -1;				/* 209 */
static int hf_dhcp_option_pxe_path_prefix = -1;				/* 210 */
static int hf_dhcp_option_6RD_ipv4_mask_len = -1;			/* 212 */
static int hf_dhcp_option_6RD_prefix_len = -1;				/* 212 */
static int hf_dhcp_option_6RD_prefix = -1;				/* 212 */
static int hf_dhcp_option_6RD_border_relay_ip = -1;			/* 212 */
static int hf_dhcp_option242_avaya = -1;				/* 242 */
static int hf_dhcp_option242_avaya_tlssrvr = -1;			/* 242 */
static int hf_dhcp_option242_avaya_httpsrvr = -1;			/* 242 */
static int hf_dhcp_option242_avaya_httpdir = -1;			/* 242 */
static int hf_dhcp_option242_avaya_static = -1;				/* 242 */
static int hf_dhcp_option242_avaya_mcipadd = -1;			/* 242 */
static int hf_dhcp_option242_avaya_dot1x = -1;				/* 242 */
static int hf_dhcp_option242_avaya_icmpdu = -1;				/* 242 */
static int hf_dhcp_option242_avaya_icmpred = -1;			/* 242 */
static int hf_dhcp_option242_avaya_l2q = -1;				/* 242 */
static int hf_dhcp_option242_avaya_l2qvlan = -1;			/* 242 */
static int hf_dhcp_option242_avaya_loglocal = -1;			/* 242 */
static int hf_dhcp_option242_avaya_phy1stat = -1;			/* 242 */
static int hf_dhcp_option242_avaya_phy2stat = -1;			/* 242 */
static int hf_dhcp_option242_avaya_procpswd = -1;			/* 242 */
static int hf_dhcp_option242_avaya_procstat = -1;			/* 242 */
static int hf_dhcp_option242_avaya_snmpadd = -1;			/* 242 */
static int hf_dhcp_option242_avaya_snmpstring = -1;			/* 242 */
static int hf_dhcp_option242_avaya_vlantest = -1;			/* 242 */
static int hf_dhcp_option_private_proxy_autodiscovery = -1;		/* 252 */
static int hf_dhcp_option_end = -1;					/* 255 */
static int hf_dhcp_option_end_overload = -1;				/* 255 (with overload)*/
static int hf_dhcp_vendor_unknown_suboption = -1;
static int hf_dhcp_suboption_data = -1;
static int hf_dhcp_pc_ietf_ccc_suboption = -1;
static int hf_dhcp_pc_i05_ccc_suboption = -1;

static int hf_dhcp_cl_ietf_ccc_dev_realm_unc_key_nom_timeout = -1;
static int hf_dhcp_cl_ietf_ccc_dev_realm_unc_key_max_timeout = -1;
static int hf_dhcp_cl_ietf_ccc_dev_realm_unc_key_max_retries = -1;
static int hf_dhcp_cl_ietf_ccc_dev_prov_unc_key_nom_timeout = -1;
static int hf_dhcp_cl_ietf_ccc_dev_prov_unc_key_max_timeout = -1;
static int hf_dhcp_cl_ietf_ccc_dev_prov_unc_key_max_retries = -1;

static gint ett_dhcp = -1;
static gint ett_dhcp_flags = -1;
static gint ett_dhcp_option = -1;
static gint ett_dhcp_option43_suboption = -1;
static gint ett_dhcp_option43_suboption_discovery = -1;
static gint ett_dhcp_option43_suboption_tree = -1;
static gint ett_dhcp_option63_suboption = -1;
static gint ett_dhcp_option77_instance = -1;
static gint ett_dhcp_option82_suboption = -1;
static gint ett_dhcp_option82_suboption9 = -1;
static gint ett_dhcp_option124_vendor_class_data_item = -1;
static gint ett_dhcp_option125_suboption = -1;
static gint ett_dhcp_option125_tr111_suboption = -1;
static gint ett_dhcp_option125_cl_suboption = -1;
static gint ett_dhcp_option242_suboption = -1;
static gint ett_dhcp_fqdn = -1;
static gint ett_dhcp_fqdn_flags = -1;
static gint ett_dhcp_filename_option = -1;
static gint ett_dhcp_server_hostname = -1;
static gint ett_dhcp_isns_functions = -1;
static gint ett_dhcp_isns_discovery_domain_access = -1;
static gint ett_dhcp_isns_administrative_flags = -1;
static gint ett_dhcp_isns_server_security_bitmap = -1;
static gint ett_dhcp_isns_secondary_server_addr = -1;
static gint ett_dhcp_o43_bsdp_boot_image = -1;
static gint ett_dhcp_o43_bsdp_attributes = -1;
static gint ett_dhcp_o43_bsdp_image_desc_list = -1;
static gint ett_dhcp_o43_bsdp_image_desc = -1;
static gint ett_dhcp_o43_bsdp_attributes_flags = -1;
static gint ett_dhcp_option158_pcp_list = -1;

static expert_field ei_dhcp_bad_length = EI_INIT;
static expert_field ei_dhcp_bad_bitfield = EI_INIT;
static expert_field ei_dhcp_missing_subopt_length = EI_INIT;
static expert_field ei_dhcp_missing_subopt_value = EI_INIT;
static expert_field ei_dhcp_mal_duid = EI_INIT;
static expert_field hf_dhcp_opt_overload_file_end_missing = EI_INIT;
static expert_field hf_dhcp_opt_overload_sname_end_missing = EI_INIT;
static expert_field hf_dhcp_subopt_unknown_type = EI_INIT;
static expert_field ei_dhcp_option_civic_location_bad_cattype = EI_INIT;
static expert_field ei_dhcp_option_dhcp_name_service_invalid = EI_INIT;
static expert_field ei_dhcp_option_sip_server_address_encoding = EI_INIT;
static expert_field ei_dhcp_option_classless_static_route = EI_INIT;
static expert_field ei_dhcp_option125_enterprise_malformed = EI_INIT;
static expert_field ei_dhcp_option_6RD_malformed = EI_INIT;
static expert_field ei_dhcp_option82_vi_cl_tag_unknown = EI_INIT;
static expert_field ei_dhcp_option_parse_err = EI_INIT;
static expert_field ei_dhcp_nonstd_option_data = EI_INIT;
static expert_field ei_dhcp_suboption_invalid = EI_INIT;
static expert_field ei_dhcp_secs_le = EI_INIT;
static expert_field ei_dhcp_end_option_missing = EI_INIT;
static expert_field ei_dhcp_client_address_not_given = EI_INIT;
static expert_field ei_dhcp_server_name_overloaded_by_dhcp = EI_INIT;
static expert_field ei_dhcp_boot_filename_overloaded_by_dhcp = EI_INIT;
static expert_field ei_dhcp_option_isns_ignored_bitfield = EI_INIT;
static expert_field ei_dhcp_option242_avaya_l2qvlan_invalid = EI_INIT;
static expert_field ei_dhcp_option242_avaya_vlantest_invalid = EI_INIT;
static expert_field ei_dhcp_option93_client_arch_ambiguous = EI_INIT;

static dissector_table_t dhcp_option_table;
static dissector_table_t dhcp_enterprise_table;
static heur_dissector_list_t dhcp_vendor_id_subdissector;
static heur_dissector_list_t dhcp_vendor_info_subdissector;
static dissector_handle_t dhcp_handle;
static dissector_handle_t dhcpopt_basic_handle;

typedef struct dhcp_option_data
{
	guchar option;
	guint8 *overload;
	tvbuff_t *orig_tvb;
	const char *dhcp_type;
	const guint8 *vendor_class_id;
} dhcp_option_data_t;

#define DHCP_HW_IS_ETHER(hwtype, length) ((hwtype == 1 || hwtype == 6) && length == 6)

/* RFC2937 The Name Service Search Option for DHCP */
#define RFC2937_LOCAL_NAMING_INFORMATION			   0
#define RFC2937_DOMAIN_NAME_SERVER_OPTION			   6
#define RFC2937_NETWORK_INFORMATION_SERVERS_OPTION		  41
#define RFC2937_NETBIOS_OVER_TCP_IP_NAME_SERVER_OPTION		  44
#define RFC2937_NETWORK_INFORMATION_SERVICE_PLUS_SERVERS_OPTION	  65

/* RFC3825decoder error codes of the conversion function */
#define RFC3825_NOERROR				  0
#define RFC3825_LATITUDE_OUTOFRANGE		  1
#define RFC3825_LATITUDE_UNCERTAINTY_OUTOFRANGE	  2
#define RFC3825_LONGITUDE_OUTOFRANGE		  3
#define RFC3825_LONGITUDE_UNCERTAINTY_OUTOFRANGE  4
#define RFC3825_ALTITUDE_OUTOFRANGE		  5
#define RFC3825_ALTITUDE_UNCERTAINTY_OUTOFRANGE	  6
#define RFC3825_ALTITUDE_TYPE_OUTOFRANGE	  7
#define RFC3825_DATUM_TYPE_OUTOFRANGE		  8

#define	DUID_LLT		1
#define	DUID_EN			2
#define	DUID_LL			3

struct rfc3825_location_fixpoint_t {

	gint64 latitude;	/* latitude in degrees, allowed range from -90deg to 90deg.
				   Fixpoint A(8,25) with 34 bits */
	guint8 latitude_res;	/* the resolution of the latitude in bits, allowed range is from 0 to 34.
				   6 bits. */
	gint64 longitude;	/* longitude in degrees, range from -180deg to 180deg.
				   Fixpoint A(8,25) with 34 bits */
	guint8 longitude_res;	/* the resolution of the longitude in bits, allowed range is from 0 to 34.
				   6 bits. */
	gint32 altitude;	/* the altitude, 30 bits.
				   Depending on alt_type this are meters or floors, no range limit.
				   altitude_type==1: A(13,8) with 22 bits
				   altitude_type==2: A(13,8) with 22 bits */
	guint8 altitude_res;	/* the resolution of the altitude in bits, allowed range is from 0 to 30.
				   6 bits.
				   altitude_type==1: any value between 0 and 30
				   altitude_type==2: either 0 (floor unknown) or 30 */
	guint8 altitude_type;	/* the type of the altitude, 4 bits. allowed values are:
				   0: unknown
				   1: altitude in meters
				   2: altitude in floors */
	guint8 datum_type;	/* the map datum used for the coordinates. 8 bits.
				   All values are allowed although currently only the
				   following ones are defined:
				   1: WGS84
				   2: NAD83/NAVD88
				   3: NAD83/MLLW */
};

/* The rfc3825_location_decimal_t structure holds the location parameters
 * in decimal (floating point) format.
 */
struct rfc3825_location_decimal_t {

	double latitude;	/* latitude in degrees, allowed range from -90deg to 90deg */
	double latitude_res;	/* the uncertainty of the latitude in grad, "0.01" means +-0.01deg
				   from the altitude. During conversion this will be rounded to
				   next smaller value which can be represented in fixpoint arithmetic */
	double longitude;	/* longitude in degrees, range from -180deg to 180deg */
	double longitude_res;	/* the uncertainty of the longitude in grad, "0.01" means +-0.01deg
				   from the longitude. During conversion this will be rounded to
				   next smaller value which can be represented in fixpoint arithmetic */
	double altitude;	/* the altitude, depending on alt_type this are meters or floors, no range limit */
	double altitude_res;	/* the uncertainty of the altitude in either:
				   - altitude-type=meters: "10" means 10 meters which means +-10 meters from the altitude
				   - altitude-type=floors: either 0 (unknown) or 30 (exact) */
	int altitude_type;	/* the type of the altitude, allowed values are
				   0: unknown
				   1: altitude in meters
				   2: altitude in floors */
	int datum_type;		 /* the map datum used for the coordinates.
				    All values are allowed although currently only the
				    following ones are defined:
				    1: WGS84
				    2: NAD83/NAVD88
				    3: NAD83/MLLW */
};

/* For managing split options with RFC 3396 */
struct rfc3396_for_option_t {
	unsigned int total_number_of_block;
	unsigned int index_current_block;
	tvbuff_t* tvb_composite;
};

/* The RFC 3397 allows to cut long option (RFC 3396). */
struct rfc3396_for_option_t rfc3396_dns_domain_search_list;

/* The RFC 3361 allows to cut long option (RFC 3396). */
struct rfc3396_for_option_t rfc3396_sip_server;

enum {
	RFC_3361_ENC_FQDN,
	RFC_3361_ENC_IPADDR
};

static void dissect_vendor_avaya_param(proto_tree *tree, packet_info *pinfo, proto_item *vti,
		tvbuff_t *tvb, int optoff, wmem_strbuf_t *avaya_param_buf);

/* converts fixpoint presentation into decimal presentation
   also converts values which are out of range to allow decoding of received data */
static int rfc3825_fixpoint_to_decimal(struct rfc3825_location_fixpoint_t *fixpoint, struct rfc3825_location_decimal_t *decimal);

/* decodes the LCI string received from DHCP into the fixpoint values */
static void rfc3825_lci_to_fixpoint(const unsigned char lci[16], struct rfc3825_location_fixpoint_t *fixpoint);


/* Map Datum Types used for the coordinates (RFC 3825) */
static const value_string map_datum_type_values[] = {
	{ 1,	"WGS 84" },
	{ 2,	"NAD83 (NAVD88)" },
	{ 3,	"NAD83 (MLLW)" },
	{ 0,	NULL }
};


/* Altitude Types used for the coordinates (RFC 3825) */
static const value_string altitude_type_values[] = {
	{ 1,	"Meters" },
	{ 2,	"Floors" },
	{ 0,	NULL }
};

/* AutoConfigure (RFC 2563) */
static const value_string dhcp_autoconfig[] = {
	{ 0,	"DoNotAutoConfigure"},
	{ 1,	"AutoConfigure"},
	{ 0,	NULL }
};

/* Error Types for RFC 3825 coordinate location decoding */
static const value_string rfc3825_error_types[] = {
	{ 1,	"Latitude is out of range [-90,90]"},
	{ 2,	"Latitude Uncertainty is out of range [0,90]"},
	{ 3,	"Longitude is out of range [-180,180]"},
	{ 4,	"Longitude Uncertainty is out of range [0,180]"},
	{ 5,	"Altitude is out of range [-(2^21),(2^21)-1]"},
	{ 6,	"Altitude Uncertainty is out of range [0,2^20]"},
	{ 7,	"Altitude Type is out of range [0,2]"},
	{ 8,	"Datum is out of range [1,3]"},
	{ 0,	NULL }
};



/* Civic Address What field (RFC 4776) */
static const value_string civic_address_what_values[] = {
	{ 0,	"Location of the DHCP server" },
	{ 1,	"Location of the network element believed to be closest to the client" },
	{ 2,	"Location of the client"},
	{ 0, NULL}
};

/* Civic Address Type field (RFC 4119, RFC 4776, RFC 5139) */
static const value_string civic_address_type_values[] = {
	{   0,	"Language" },
	{   1,	"A1" },
	{   2,	"A2" },
	{   3,	"A3" },
	{   4,	"A4" },
	{   5,	"A5" },
	{   6,	"A6" },
	{  16,	"PRD (Leading street direction)" },
	{  17,	"POD (Trailing street suffix)" },
	{  18,	"STS (Street suffix)" },
	{  19,	"HNO (House number)" },
	{  20,	"HNS (House number suffix)" },
	{  21,	"LMK (Landmark or vanity address)" },
	{  22,	"LOC (Additional location information)" },
	{  23,	"NAM" },
	{  24,	"PC (Postal/ZIP code)" },
	{  25,	"BLD (Building)" },
	{  26,	"UNIT" },
	{  27,	"FLR (Floor)" },
	{  28,	"ROOM" },
	{  29,	"PLC (Place-type)" },
	{  30,	"PCN (Postal community name)" },
	{  31,	"POBOX" },
	{  32,	"ADDCODE (Additional Code)" },
	{  33,	"SEAT" },
	{  34,	"RD (Primary road or street)" },
	{  35,	"RDSEC (Road section)" },
	{  36,	"RDBR (Road branch)" },
	{  37,	"RDSUBBR (Road sub-branch)" },
	{  38,	"PRM (Road pre-modifier)" },
	{  39,	"POM (Road post-modifier" },
	{ 128,	"Script" },
	{ 0, NULL }
};

static const value_string cablelab_ipaddr_mode_vals[] = {
	{ 1, "IPv4" },
	{ 2, "IPv6" },
	{ 0, NULL }
};

static const value_string duidtype_vals[] =
{
	{ DUID_LLT,	"link-layer address plus time" },
	{ DUID_EN,	"assigned by vendor based on Enterprise number" },
	{ DUID_LL,	"link-layer address" },
	{ 0, NULL }
};

static const value_string forcerenew_nonce_algo_vals[] = {
	{ 1, "HMAC-MD5" },
	{ 0, NULL },
};

static const value_string rdnss_pref_vals[] = {
	{ 0, "Medium" },
	{ 1, "High" },
	{ 2, "Reserved" },
	{ 3, "Low" },
	{ 0, NULL },
};

static const value_string bulk_lease_dhcp_status_code_vals[] = {
	{ 0, "Success" },
	{ 1, "UpsecFail" },
	{ 2, "QueryTerminated" },
	{ 3, "MalformedQuery" },
	{ 4, "NotAllowed" },
	{ 0, NULL },
};

static const value_string bulk_lease_dhcp_state_vals[] = {
	{ 1, "Available" },
	{ 2, "Active" },
	{ 3, "Expired" },
	{ 4, "Released" },
	{ 5, "Abandoned" },
	{ 6, "Reset" },
	{ 7, "Remote" },
	{ 8, "Transitioning" },
	{ 0, NULL },
};

static const value_string o43pxeclient_boot_server_types[] = {
	{  0, "PXE bootstrap server" },
	{  1, "Microsoft Windows NT Boot Server" },
	{  2, "Intel LCM Boot Server" },
	{  3, "DOS/UNDI Boot Server" },
	{  4, "NEC ESMPRO Boot Server" },
	{  5, "IBM WSoD Boot Server" },
	{  6, "IBM LCCM Boot Server" },
	{  7, "CA Unicenter TNG Boot Server" },
	{  8, "HP OpenView Boot Server" },
	{  65535, "PXE API Test server" },
	{  0, NULL },
};

static const value_string o43pxeclient_boot_menu_types[] = {
	{  0, "Local boot" },
	{  0, NULL },
};

static gboolean novell_string = FALSE;

static gint dhcp_uuid_endian = ENC_LITTLE_ENDIAN;

static const enum_val_t dhcp_uuid_endian_vals[] = {
	{ "Little Endian", "Little Endian",	ENC_LITTLE_ENDIAN},
	{ "Big Endian",	 "Big Endian", ENC_BIG_ENDIAN },
	{ NULL, NULL, 0 }
};

#define DHCP_SECS_ENDIAN_AUTODETECT -1

static gint dhcp_secs_endian = DHCP_SECS_ENDIAN_AUTODETECT;

static const enum_val_t dhcp_secs_endian_vals[] = {
	{ "Autodetect", "Autodetect", DHCP_SECS_ENDIAN_AUTODETECT},
	{ "Little Endian", "Little Endian", ENC_LITTLE_ENDIAN},
	{ "Big Endian", "Big Endian", ENC_BIG_ENDIAN },
	{ NULL, NULL, 0 }
};

#define DHCP_UDP_PORT_RANGE  "67-68,4011"
#define PROXYDHCP_UDP_PORT   4011

#define BOOTP_BC	0x8000
#define BOOTP_MBZ	0x7FFF

/* FQDN stuff */
#define F_FQDN_S	0x01
#define F_FQDN_O	0x02
#define F_FQDN_E	0x04
#define F_FQDN_N	0x08
#define F_FQDN_MBZ	0xf0

#define ISNS_BITFIELD_NZ_MUST_BE_IGNORED(mask, ena_flag)		\
	((mask) && !((mask) & (ena_flag)))

/* iSNS bit fields */
#define F_ISNS_FUNCTIONS_ENABLED	0x0001
#define F_ISNS_FUNCTIONS_DD_AUTH	0x0002
#define F_ISNS_FUNCTIONS_SEC_POLICY	0x0004
#define F_ISNS_FUNCTIONS_RESERVED	0xFFF8

#define F_ISNS_DD_ACCESS_ENABLED		0x0001
#define F_ISNS_DD_ACCESS_CTRL_NODE		0x0002
#define F_ISNS_DD_ACCESS_ISCSI_TARGET		0x0004
#define F_ISNS_DD_ACCESS_ISCSI_INITIATOR	0x0008
#define F_ISNS_DD_ACCESS_IFCP_TARGET_PORT	0x0010
#define F_ISNS_DD_ACCESS_IFCP_INITIATOR_PORT	0x0020
#define F_ISNS_DD_ACCESS_RESERVED		0xFFC0

#define F_ISNS_ADMIN_FLAGS_ENABLED		0x0001
#define F_ISNS_ADMIN_FLAGS_HEARTBEAT		0x0002
#define F_ISNS_ADMIN_FLAGS_MANAGEMENT_SCNS	0x0004
#define F_ISNS_ADMIN_FLAGS_DEFAULT_DD		0x0008
#define F_ISNS_ADMIN_FLAGS_RESERVED		0xFFF0

#define F_ISNS_SRV_SEC_BITMAP_ENABLED		0x0001
#define F_ISNS_SRV_SEC_BITMAP_IKE_IPSEC		0x0002
#define F_ISNS_SRV_SEC_BITMAP_MAIN_MODE		0x0004
#define F_ISNS_SRV_SEC_BITMAP_AGGRESSIVE	0x0008
#define F_ISNS_SRV_SEC_BITMAP_PFS		0x0010
#define F_ISNS_SRV_SEC_BITMAP_TRASPORT_MODE	0x0020
#define F_ISNS_SRV_SEC_BITMAP_TUNNEL_MODE	0x0040
#define F_ISNS_SRV_SEC_BITMAP_RESERVED		0xFF80


static const true_false_string tfs_fqdn_o = {
	"Override",
	"No override"
};

static const true_false_string tfs_fqdn_e = {
	"Binary encoding",
	"ASCII encoding"
};

static const true_false_string tfs_fqdn_n = {
	"No server updates",
	"Some server updates"
};

static const true_false_string tfs_isns_function_dd_based_auth = {
	"Automatically allowed access",
	"Explicitly performed",
};

static const true_false_string tfs_isns_functions_sec_distrib = {
	"Download from iSNS server",
	"By other means",
};

static const true_false_string tfs_bulk_lease_data_source = {
	"Remote",
	"Local"
};

enum field_type {
	special,
	none,
	presence,
	ipv4,			/* single IPv4 address */
	ipv4_list,		/* list of IPv4 addresses */
	string,
	bytes,
	opaque,
	val_boolean,
	val_u_byte,
	val_u_short,
	val_u_short_list,
	val_u_le_short,
	val_u_long,
	time_in_s_secs,		/* Signed */
	time_in_u_secs,		/* Unsigned (not micro) */
	fqdn,
	ipv4_or_fqdn,
	oui
};

struct opt_info {
	const char	*text;
	enum field_type ftype;
	int* phf;
};

static const true_false_string flag_set_broadcast = {
	"Broadcast",
	"Unicast"
};

#define BOOTP_MAX_NO_CHAR 64

/* PacketCable/DOCSIS definitions */
#define PACKETCABLE_MTA_CAP10 "pktc1.0:"
#define PACKETCABLE_MTA_CAP15 "pktc1.5:"
#define PACKETCABLE_MTA_CAP20 "pktc2.0:"
#define PACKETCABLE_CM_CAP11  "docsis1.1:"
#define PACKETCABLE_CM_CAP20  "docsis2.0:"
#define PACKETCABLE_CM_CAP30  "docsis3.0:"

#define PACKETCABLE_CCC_I05	 1
#define PACKETCABLE_CCC_DRAFT5	 2
#define PACKETCABLE_CCC_RFC_3495 3

static const enum_val_t pkt_ccc_protocol_versions[] = {
	{ "ccc_i05",	 "PKT-SP-PROV-I05-021127", PACKETCABLE_CCC_I05 },
	{ "ccc_draft_5", "IETF Draft 5",	   PACKETCABLE_CCC_DRAFT5 },
	{ "rfc_3495",	 "RFC 3495",		   PACKETCABLE_CCC_RFC_3495 },
	{ NULL, NULL, 0 }
};

#define APPLE_BSDP_SERVER "AAPLBSDPC"
#define APPLE_BSDP_CLIENT "AAPLBSDPC/"

#define CISCO_VCID "cisco"

#define AEROHIVE_VCID "AEROHIVE"

static gint pkt_ccc_protocol_version = PACKETCABLE_CCC_RFC_3495;
static guint pkt_ccc_option = 122;

static void dissect_docsis_cm_cap(packet_info *pinfo, proto_tree *v_tree, tvbuff_t *tvb,
				  int voff, int len, gboolean opt125);

#define ARUBA_INSTANT_AP "ArubaInstantAP"
#define ARUBA_AP "ArubaAP"

#define OPT53_DISCOVER "Discover"
/* https://www.iana.org/assignments/bootp-dhcp-parameters */
static const value_string opt53_text[] = {
	{  1,	OPT53_DISCOVER },
	{  2,	"Offer" },
	{  3,	"Request" },
	{  4,	"Decline" },
	{  5,	"ACK" },
	{  6,	"NAK" },
	{  7,	"Release" },
	{  8,	"Inform" },
	{  9,	"Force Renew" },
	{ 10,	"Lease query" },		/* RFC4388 */
	{ 11,	"Lease Unassigned" },		/* RFC4388 */
	{ 12,	"Lease Unknown" },		/* RFC4388 */
	{ 13,	"Lease Active" },		/* RFC4388 */
	{ 14,	"Bulk Lease Query" },		/* RFC6926 */
	{ 15,	"Lease Query Done" },		/* RFC6926 */
	{ 16,	"Active LeaseQuery" },		/* RFC7724 */
	{ 17,	"Lease Query Status" },		/* RFC7724 */
	{ 18,	"TLS" },			/* RFC7724 */
	{ 0,	NULL }
};

/* DHCP Authentication protocols */
#define AUTHEN_PROTO_CONFIG_TOKEN	0
#define AUTHEN_PROTO_DELAYED_AUTHEN	1

/* DHCP Authentication algorithms for delayed authentication */
#define AUTHEN_DELAYED_ALGO_HMAC_MD5	1

/* DHCP Authentication Replay Detection Methods */
#define AUTHEN_RDM_MONOTONIC_COUNTER	0x00

/* DHCP Option Overload (option code 52) */
#define OPT_OVERLOAD_FILE		1
#define OPT_OVERLOAD_SNAME		2
#define OPT_OVERLOAD_BOTH		3

/* Server name and boot file offsets and lengths */
#define SERVER_NAME_OFFSET		44
#define SERVER_NAME_LEN			64
#define FILE_NAME_OFFSET		108
#define FILE_NAME_LEN			128
#define VENDOR_INFO_OFFSET		236

static const value_string dhcp_nbnt_vals[] = {
	{0x1,	"B-node" },
	{0x2,	"P-node" },
	{0x4,	"M-node" },
	{0x8,	"H-node" },
	{0,	NULL	 }
};

/*
 * There is confusion around some Client Architecture IDs: RFC 4578 section 2.1
 * lists *requested* architecture IDs, however the actual assigned IDs
 * (https://www.ietf.org/assignments/dhcpv6-parameters/dhcpv6-parameters.xml#processor-architecture)
 * differ.  Specifically,
 *
 *    EFI Byte Code (EFI BC, EBC) was 7 in RFC 4578, but is assigned 9 by IETF.
 *    EFI x64 was 9 in RFC 4578, but is assigned 7 by IETF.
 *
 * For confirmation, refer to RFC erratum 4624:
 *    https://www.rfc-editor.org/errata/eid4624
 */
static const value_string dhcp_client_arch[] = {
	{ 0x0000, "IA x86 PC" },
	{ 0x0001, "NEC/PC98" },
	{ 0x0002, "IA64 PC" },
	{ 0x0003, "DEC Alpha" },
	{ 0x0004, "ArcX86" },
	{ 0x0005, "Intel Lean Client" },
	{ 0x0006, "EFI IA32" },
	{ 0x0007, "EFI x64" }, /* *Not* EFI BC.  See comment above. */
	{ 0x0008, "EFI Xscale" },
	{ 0x0009, "EFI BC" },  /* *Not* EFI x64.  See comment above. */
	{ 0x000a, "ARM 32-bit UEFI" },
	{ 0x000b, "ARM 64-bit UEFI" },
	{ 0x000c, "PowerPC Open Firmware" },
	{ 0x000d, "PowerPC ePAPR" },
	{ 0x000e, "POWER OPAL v3" },
	{ 0x000f, "x86 UEFI HTTP" },
	{ 0x0010, "x64 UEFI HTTP" },
	{ 0x0011, "EBC UEFI HTTP" },
	{ 0x0012, "ARM 32-bit UEFI HTTP" },
	{ 0x0013, "ARM 64-bit UEFI HTTP" },
	{ 0x0014, "PC/AT HTTP" },
	{ 0x0015, "ARM 32-bit uboot" },
	{ 0x0016, "ARM 64-bit uboot" },
	{ 0x0017, "ARM 32-bit uboot HTTP" },
	{ 0x0018, "ARM 64-bit uboot HTTP" },
	{ 0x0019, "RISC-V 32-bit UEFI" },
	{ 0x001a, "RISC-V 32-bit UEFI HTTP" },
	{ 0x001b, "RISC-V 64-bit UEFI" },
	{ 0x001c, "RISC-V 64-bit UEFI HTTP" },
	{ 0x001d, "RISC-V 128-bit UEFI" },
	{ 0x001e, "RISC-V 128-bit UEFI HTTP" },
	{ 0x001f, "s390 Basic" },
	{ 0x0020, "s390 Extended" },
	{ 0,	  NULL }
};

static const value_string opt_overload_vals[] = {
	{ OPT_OVERLOAD_FILE,  "Boot file name holds options",		     },
	{ OPT_OVERLOAD_SNAME, "Server host name holds options",		     },
	{ OPT_OVERLOAD_BOTH,  "Boot file and server host names hold options" },
	{ 0,		      NULL					     } };

static const value_string slpda_vals[] = {
	{0x00,	 "Dynamic Discovery" },
	{0x01,	 "Static Discovery" },
	{0x80,	 "Backwards compatibility" },
	{0,	NULL	 } };

static const value_string slp_scope_vals[] = {
	{0x00,	 "Preferred Scope" },
	{0x01,	 "Mandatory Scope" },
	{0,	NULL	 } };

static const value_string authen_protocol_vals[] = {
	{AUTHEN_PROTO_CONFIG_TOKEN,   "configuration token" },
	{AUTHEN_PROTO_DELAYED_AUTHEN, "delayed authentication" },
	{0,			      NULL     } };

static const value_string authen_da_algo_vals[] = {
	{AUTHEN_DELAYED_ALGO_HMAC_MD5, "HMAC_MD5" },
	{0,			       NULL	} };

static const value_string authen_rdm_vals[] = {
	{AUTHEN_RDM_MONOTONIC_COUNTER, "Monotonically-increasing counter" },
	{0,			       NULL	} };

static const value_string cl_dss_id_type_vals[] = {
	{1, "Primary DSS_ID" },
	{2, "Secondary DSS_ID" },
	{0, NULL }
};

static const value_string sip_server_enc_vals[] = {
	{0, "Fully Qualified Domain Name" },
	{1, "IPv4 Address" },
	{0, NULL }
};

static const value_string o43_bsdp_boot_image_install_vals[] = {
	{ 0, "non-install" },
	{ 1, "install" },
	{ 0, NULL }
};

static const value_string o43_bsdp_boot_image_kind_vals[] = {
	{ 0, "Mac OS 9" },
	{ 1, "Mac OS X" },
	{ 2, "Mac OS X Server" },
	{ 3, "Hardware Diagnostics" },
	{ 0, NULL }
};

static const value_string o43_bsdp_message_type_vals[] = {
	{ 1, "LIST" },
	{ 2, "SELECT" },
	{ 3, "FAILED" },
	{ 0, NULL }
};

static const string_string option242_avaya_phystat_vals[] = {
	{ "0", "Disabled" },
	{ "1", "Auto" },
	{ "2", "10Mbps half" },
	{ "3", "10Mbps full" },
	{ "4", "100Mbps half" },
	{ "5", "100Mbps full" },
	{ "6", "1000Mbps full" },
	{ 0, NULL }
};

static const string_string option242_avaya_l2q_vals[] = {
	{ "0", "Auto" },
	{ "1", "Enabled" },
	{ "2", "Disabled" },
	{ 0, NULL }
};

static const string_string option242_avaya_dot1x_vals[] = {
	{ "0", "With PAE pass-through" },
	{ "1", "With PAE pass-through and proxy Logoff" },
	{ "2", "Without PAE pass-through or proxy Logoff" },
	{ 0, NULL }
};

static const string_string option242_avaya_icmpdu_vals[] = {
	{ "0", "No ICMP Destination Unreachable messages" },
	{ "1", "Send limited Port Unreachable messages" },
	{ "2", "Send Protocol and Port Unreachable messages" },
	{ 0, NULL }
};

static const string_string option242_avaya_icmpred_vals[] = {
	{ "0", "Ignore ICMP Redirect messages" },
	{ "1", "Process ICMP Redirect messages" },
	{ 0, NULL }
};

static const string_string option242_avaya_loglocal_vals[] = {
	{ "0", "Disabled" },
	{ "1", "Emergencie" },
	{ "2", "Alerts" },
	{ "3", "Critical" },
	{ "4", "Errors" },
	{ "5", "Warnings" },
	{ "6", "Notices" },
	{ "7", "Information" },
	{ "8", "Debug" },
	{ 0, NULL }
};

static const string_string option242_avaya_procstat_vals[] = {
	{ "0", "All administrative options" },
	{ "1", "Only view administrative options" },
	{ 0, NULL }
};

static const string_string option242_avaya_static_vals[] = {
	{ "0", "Static programming never overrides call server (DHCP) or call server administered data" },
	{ "1", "Static programming overrides only file server administered data" },
	{ "2", "Static programming overrides only call server administered data" },
	{ "3", "Static programming overrides both file server- and call server-administered data" },
	{ 0, NULL }
};

/* dhcp options administration */
#define DHCP_OPT_NUM	256

/* All of the options that have a "basic" type that can be handled by dissect_dhcpopt_basic_type() */
#define DHCP_OPTION_BASICTYPE_RANGE "1-20,22-32,34-42,44-51,53-54,56-59,64-76,86-87,91-92,100-101,112-113,116,118,136-138,142,150,153,156-157,161,209-210,252"

/* Re-define structure.	 Values to be updated by dhcp_init_protocol */
static struct opt_info dhcp_opt[DHCP_OPT_NUM];

static struct opt_info default_dhcp_opt[DHCP_OPT_NUM] = {
/*   0 */ { "Padding",					none, &hf_dhcp_option_padding },
/*   1 */ { "Subnet Mask",				ipv4, &hf_dhcp_option_subnet_mask },
/*   2 */ { "Time Offset",				time_in_s_secs, &hf_dhcp_option_time_offset },
/*   3 */ { "Router",					ipv4_list, &hf_dhcp_option_router },
/*   4 */ { "Time Server",				ipv4_list, &hf_dhcp_option_time_server },
/*   5 */ { "Name Server",				ipv4_list, &hf_dhcp_option_name_server },
/*   6 */ { "Domain Name Server",			ipv4_list, &hf_dhcp_option_domain_name_server },
/*   7 */ { "Log Server",				ipv4_list, &hf_dhcp_option_log_server },
/*   8 */ { "Quotes Server",				ipv4_list, &hf_dhcp_option_quotes_server },
/*   9 */ { "LPR Server",				ipv4_list, &hf_dhcp_option_lpr_server },
/*  10 */ { "Impress Server",				ipv4_list, &hf_dhcp_option_impress_server },
/*  11 */ { "Resource Location Server",			ipv4_list, &hf_dhcp_option_resource_location_server },
/*  12 */ { "Host Name",				string, &hf_dhcp_option_hostname },
/*  13 */ { "Boot File Size",				val_u_short, &hf_dhcp_option_boot_file_size },
/*  14 */ { "Merit Dump File",				string, &hf_dhcp_option_merit_dump_file },
/*  15 */ { "Domain Name",				string, &hf_dhcp_option_domain_name },
/*  16 */ { "Swap Server",				ipv4, &hf_dhcp_option_swap_server },
/*  17 */ { "Root Path",				string, &hf_dhcp_option_root_path },
/*  18 */ { "Extensions Path",				string, &hf_dhcp_option_extension_path },
/*  19 */ { "IP Forwarding",				val_boolean, &hf_dhcp_option_ip_forwarding },
/*  20 */ { "Non-Local Source Routing",			val_boolean, &hf_dhcp_option_non_local_source_routing },
/*  21 */ { "Policy Filter",				special, NULL },
/*  22 */ { "Maximum Datagram Reassembly Size",		val_u_short, &hf_dhcp_option_max_datagram_reassembly_size },
/*  23 */ { "Default IP Time-to-Live",			val_u_byte, &hf_dhcp_option_default_ip_ttl },
/*  24 */ { "Path MTU Aging Timeout",			time_in_u_secs, &hf_dhcp_option_path_mtu_aging_timeout },
/*  25 */ { "Path MTU Plateau Table",			val_u_short_list, &hf_dhcp_option_path_mtu_plateau_table_item },
/*  26 */ { "Interface MTU",				val_u_short, &hf_dhcp_option_interface_mtu },
/*  27 */ { "All Subnets are Local",			val_boolean, &hf_dhcp_option_all_subnets_are_local },
/*  28 */ { "Broadcast Address",			ipv4, &hf_dhcp_option_broadcast_address },
/*  29 */ { "Perform Mask Discovery",			val_boolean, &hf_dhcp_option_perform_mask_discovery },
/*  30 */ { "Mask Supplier",				val_boolean, &hf_dhcp_option_mask_supplier },
/*  31 */ { "Perform Router Discover",			val_boolean, &hf_dhcp_option_perform_router_discover },
/*  32 */ { "Router Solicitation Address",		ipv4, &hf_dhcp_option_router_solicitation_address },
/*  33 */ { "Static Route",				special, NULL },
/*  34 */ { "Trailer Encapsulation",			val_boolean, &hf_dhcp_option_trailer_encapsulation },
/*  35 */ { "ARP Cache Timeout",			time_in_u_secs, &hf_dhcp_option_arp_cache_timeout },
/*  36 */ { "Ethernet Encapsulation",			val_boolean, &hf_dhcp_option_ethernet_encapsulation },
/*  37 */ { "TCP Default TTL",				val_u_byte, &hf_dhcp_option_tcp_default_ttl },
/*  38 */ { "TCP Keepalive Interval",			time_in_u_secs, &hf_dhcp_option_tcp_keepalive_interval },
/*  39 */ { "TCP Keepalive Garbage",			val_boolean, &hf_dhcp_option_tcp_keepalive_garbage },
/*  40 */ { "Network Information Service Domain",	string, &hf_dhcp_option_nis_domain },
/*  41 */ { "Network Information Service Servers",	ipv4_list, &hf_dhcp_option_nis_server },
/*  42 */ { "Network Time Protocol Servers",		ipv4_list, &hf_dhcp_option_ntp_server },
/*  43 */ { "Vendor-Specific Information",		special, NULL },
/*  44 */ { "NetBIOS over TCP/IP Name Server",		ipv4_list, &hf_dhcp_option_netbios_over_tcpip_name_server },
/*  45 */ { "NetBIOS over TCP/IP Datagram Distribution Name Server", ipv4_list, &hf_dhcp_option_netbios_over_tcpip_dd_name_server },
/*  46 */ { "NetBIOS over TCP/IP Node Type",		val_u_byte, &hf_dhcp_option_netbios_over_tcpip_node_type },
/*  47 */ { "NetBIOS over TCP/IP Scope",		string, &hf_dhcp_option_netbios_over_tcpip_scope },
/*  48 */ { "X Window System Font Server",		ipv4_list, &hf_dhcp_option_xwindows_system_font_server },
/*  49 */ { "X Window System Display Manager",		ipv4_list, &hf_dhcp_option_xwindows_system_display_manager },
/*  50 */ { "Requested IP Address",			ipv4, &hf_dhcp_option_requested_ip_address },
/*  51 */ { "IP Address Lease Time",			time_in_u_secs, &hf_dhcp_option_ip_address_lease_time },
/*  52 */ { "Option Overload",				special, &hf_dhcp_option_option_overload },
/*  53 */ { "DHCP Message Type",			val_u_byte, &hf_dhcp_option_dhcp },
/*  54 */ { "DHCP Server Identifier",			ipv4, &hf_dhcp_option_dhcp_server_id },
/*  55 */ { "Parameter Request List",			special, &hf_dhcp_option_parameter_request_list_item },
/*  56 */ { "Message",					string, &hf_dhcp_option_message },
/*  57 */ { "Maximum DHCP Message Size",		val_u_short, &hf_dhcp_option_dhcp_max_message_size },
/*  58 */ { "Renewal Time Value",			time_in_u_secs, &hf_dhcp_option_renewal_time_value },
/*  59 */ { "Rebinding Time Value",			time_in_u_secs, &hf_dhcp_option_rebinding_time_value },
/*  60 */ { "Vendor class identifier",			special, NULL },
/*  61 */ { "Client identifier",			special, NULL },
/*  62 */ { "Novell/Netware IP domain",			string, &hf_dhcp_option_novell_netware_ip_domain },
/*  63 */ { "Novell Options",				special, NULL },
/*  64 */ { "Network Information Service+ Domain",	string, &hf_dhcp_option_nis_plus_domain },
/*  65 */ { "Network Information Service+ Servers",	ipv4_list, &hf_dhcp_option_nis_plus_server },
/*  66 */ { "TFTP Server Name",				string, &hf_dhcp_option_tftp_server_name },
/*  67 */ { "Bootfile name",				string, &hf_dhcp_option_bootfile_name },
/*  68 */ { "Mobile IP Home Agent",			ipv4_list, &hf_dhcp_option_mobile_ip_home_agent  },
/*  69 */ { "SMTP Server",				ipv4_list, &hf_dhcp_option_smtp_server },
/*  70 */ { "POP3 Server",				ipv4_list, &hf_dhcp_option_pop3_server },
/*  71 */ { "NNTP Server",				ipv4_list, &hf_dhcp_option_nntp_server },
/*  72 */ { "Default WWW Server",			ipv4_list, &hf_dhcp_option_default_www_server },
/*  73 */ { "Default Finger Server",			ipv4_list, &hf_dhcp_option_default_finger_server },
/*  74 */ { "Default IRC Server",			ipv4_list, &hf_dhcp_option_default_irc_server },
/*  75 */ { "StreetTalk Server",			ipv4_list, &hf_dhcp_option_streettalk_server },
/*  76 */ { "StreetTalk Directory Assistance Server",	ipv4_list, &hf_dhcp_option_streettalk_da_server },
/*  77 */ { "User Class Information",			special, NULL },
/*  78 */ { "Directory Agent Information",		special, NULL },
/*  79 */ { "Service Location Agent Scope",		special, NULL },
/*  80 */ { "Rapid commit",				opaque, NULL },
/*  81 */ { "Client Fully Qualified Domain Name",	special, NULL},
/*  82 */ { "Agent Information Option",			special, NULL},
/*  83 */ { "iSNS",					opaque, NULL },
/*  84 */ { "Removed/Unassigned",			opaque, NULL },
/*  85 */ { "Novell Directory Services Servers",	special, NULL},
/*  86 */ { "Novell Directory Services Tree Name",	string, &hf_dhcp_option_novell_ds_tree_name },
/*  87 */ { "Novell Directory Services Context",	string, &hf_dhcp_option_novell_ds_context },
/*  88 */ { "BCMCS Controller Domain Name [TODO:RFC4280]",	opaque, NULL },
/*  89 */ { "BCMCS Controller IPv4 address [TODO:RFC4280]",	opaque, NULL },
/*  90 */ { "Authentication",				special, NULL},
/*  91 */ { "Client last transaction time",		time_in_u_secs, &hf_dhcp_option_client_last_transaction_time },
/*  92 */ { "Associated IP option",			ipv4_list, &hf_dhcp_option_associated_ip_option },
/*  93 */ { "Client System Architecture",		special, NULL},
/*  94 */ { "Client Network Device Interface",		special, NULL},
/*  95 */ { "LDAP [TODO:RFC3679]",			opaque, NULL },
/*  96 */ { "Removed/Unassigned",			opaque, NULL },
/*  97 */ { "UUID/GUID-based Client Identifier",	special, NULL},
/*  98 */ { "Open Group's User Authentication [TODO:RFC2485]",	opaque, NULL },
/*  99 */ { "Civic Addresses Configuration",		special, NULL},
/* 100 */ { "PCode", 					string, &hf_dhcp_option_tz_pcode },
/* 101 */ { "TCode",					string, &hf_dhcp_option_tz_tcode },
/* 102 */ { "Removed/unassigned",			opaque, NULL },
/* 103 */ { "Removed/unassigned",			opaque, NULL },
/* 104 */ { "Removed/unassigned",			opaque, NULL },
/* 105 */ { "Removed/unassigned",			opaque, NULL },
/* 106 */ { "Removed/unassigned",			opaque, NULL },
/* 107 */ { "Removed/unassigned",			opaque, NULL },
/* 108 */ { "IPv6-Only Preferred",			opaque, NULL },
/* 109 */ { "Unassigned",				opaque, NULL },
/* 110 */ { "Removed/Unassigned",			opaque, NULL },
/* 111 */ { "Unassigned",				opaque, NULL },
/* 112 */ { "NetInfo Parent Server Address",		ipv4_list, &hf_dhcp_option_netinfo_parent_server_address },
/* 113 */ { "NetInfo Parent Server Tag",		string, &hf_dhcp_option_netinfo_parent_server_tag },
/* 114 */ { "DHCP Captive-Portal",			special, NULL },
/* 115 */ { "Removed/Unassigned",			opaque, NULL },
/* 116 */ { "DHCP Auto-Configuration",			val_u_byte, &hf_dhcp_option_dhcp_auto_configuration },
/* 117 */ { "Name Service Search",			special, NULL },
/* 118 */ { "Subnet Selection Option",			ipv4_list, &hf_dhcp_option_subnet_selection_option },
/* 119 */ { "Domain Search",				special, NULL },
/* 120 */ { "SIP Servers",				special, NULL },
/* 121 */ { "Classless Static Route",			special, NULL},
/* 122 */ { "CableLabs Client Configuration [TODO:RFC3495]",	opaque, NULL },
/* 123 */ { "Coordinate-based Location Configuration",	special, NULL},
/* 124 */ { "V-I Vendor Class",				special, NULL},
/* 125 */ { "V-I Vendor-specific Information",		special, NULL},
/* 126 */ { "Removed/Unassigned",			opaque, NULL },
/* 127 */ { "Removed/Unassigned",			opaque, NULL },
/* 128 */ { "DOCSIS full security server IP [TODO]",	opaque, NULL },
/* 129 */ { "PXE - undefined (vendor specific)",	opaque, NULL },
/* 130 */ { "PXE - undefined (vendor specific)",	opaque, NULL },
/* 131 */ { "PXE - undefined (vendor specific)",	opaque, NULL },
/* 132 */ { "PXE - undefined (vendor specific)",	opaque, NULL },
/* 133 */ { "PXE - undefined (vendor specific)",	opaque, NULL },
/* 134 */ { "PXE - undefined (vendor specific)",	opaque, NULL },
/* 135 */ { "PXE - undefined (vendor specific)",	opaque, NULL },
/* 136 */ { "PANA Authentication Agent",		ipv4_list, &hf_dhcp_option_pana_agent },
/* 137 */ { "LoST Server Domain Name",			string, &hf_dhcp_option_lost_server_domain_name },
/* 138 */ { "CAPWAP Access Controllers",		ipv4_list, &hf_dhcp_option_capwap_access_controller },
/* 139 */ { "IPv4 Address-MoS",				opaque, NULL },
/* 140 */ { "IPv4 FQDN-MoS",				opaque, NULL },
/* 141 */ { "SIP UA Configuration Domains",		opaque, NULL },
/* 142 */ { "IPv4 Address ANDSF",			ipv4_list, &hf_dhcp_option_andsf_server },
/* 143 */ { "Zerotouch Redirect [TODO: draft-ietf-netconf-zerotouch]",	opaque, NULL },
/* 144 */ { "Geospatial Location [TODO:RFC6225]",	opaque, NULL },
/* 145 */ { "Forcerenew Nonce Capable",			special, NULL },
/* 146 */ { "RDNSS Selection",				special, NULL },
/* 147 */ { "Unassigned",				opaque, NULL },
/* 148 */ { "Unassigned",				opaque, NULL },
/* 149 */ { "Unassigned",				opaque, NULL },
/* 150 */ { "TFTP Server Address",			ipv4_list, &hf_dhcp_option_tftp_server_address },
/* 151 */ { "Leasequery Status code",			special, NULL },
/* 152 */ { "Leasequery Base Time",			special, NULL },
/* 153 */ { "Leasequery Start Time of State",		time_in_u_secs, &hf_dhcp_option_bulk_lease_start_time_of_state },
/* 154 */ { "Leasequery Query Start Time",		special, NULL },
/* 155 */ { "Leasequery Query End Time",		special, NULL },
/* 156 */ { "Leasequery Dhcp State",			val_u_byte, &hf_dhcp_option_bulk_lease_dhcp_state },
/* 157 */ { "Leasequery Data Source",			val_boolean, &hf_dhcp_option_bulk_lease_data_source },
/* 158 */ { "PCP Server",				special, NULL },
/* 159 */ { "Portparams",				special, NULL },
/* 160 */ { "Unassigned (ex DHCP Captive-Portal)",	special, NULL }, /* Previously assigned by [RFC7710]; known to also be used by Polycom. */
/* 161 */ { "Manufacturer Usage Description",		string, &hf_dhcp_option_mudurl},
/* 162 */ { "Unassigned",				opaque, NULL },
/* 163 */ { "Unassigned",				opaque, NULL },
/* 164 */ { "Unassigned",				opaque, NULL },
/* 165 */ { "Unassigned",				opaque, NULL },
/* 166 */ { "Unassigned",				opaque, NULL },
/* 167 */ { "Unassigned",				opaque, NULL },
/* 168 */ { "Unassigned",				opaque, NULL },
/* 169 */ { "Unassigned",				opaque, NULL },
/* 170 */ { "Unassigned",				opaque, NULL },
/* 171 */ { "Unassigned",				opaque, NULL },
/* 172 */ { "Unassigned",				opaque, NULL },
/* 173 */ { "Unassigned",				opaque, NULL },
/* 174 */ { "Unassigned",				opaque, NULL },
/* 175 */ { "Etherboot",				opaque, NULL },
/* 176 */ { "IP Telephone",				opaque, NULL },
/* 177 */ { "Etherboot",				opaque, NULL },
/* 178 */ { "Unassigned",				opaque, NULL },
/* 179 */ { "Unassigned",				opaque, NULL },
/* 180 */ { "Unassigned",				opaque, NULL },
/* 181 */ { "Unassigned",				opaque, NULL },
/* 182 */ { "Unassigned",				opaque, NULL },
/* 183 */ { "Unassigned",				opaque, NULL },
/* 184 */ { "Unassigned",				opaque, NULL },
/* 185 */ { "Unassigned",				opaque, NULL },
/* 186 */ { "Unassigned",				opaque, NULL },
/* 187 */ { "Unassigned",				opaque, NULL },
/* 188 */ { "Unassigned",				opaque, NULL },
/* 189 */ { "Unassigned",				opaque, NULL },
/* 190 */ { "Unassigned",				opaque, NULL },
/* 191 */ { "Unassigned",				opaque, NULL },
/* 192 */ { "Unassigned",				opaque, NULL },
/* 193 */ { "Unassigned",				opaque, NULL },
/* 194 */ { "Unassigned",				opaque, NULL },
/* 195 */ { "Unassigned",				opaque, NULL },
/* 196 */ { "Unassigned",				opaque, NULL },
/* 197 */ { "Unassigned",				opaque, NULL },
/* 198 */ { "Unassigned",				opaque, NULL },
/* 199 */ { "Unassigned",				opaque, NULL },
/* 200 */ { "Unassigned",				opaque, NULL },
/* 201 */ { "Unassigned",				opaque, NULL },
/* 202 */ { "Unassigned",				opaque, NULL },
/* 203 */ { "Unassigned",				opaque, NULL },
/* 204 */ { "Unassigned",				opaque, NULL },
/* 205 */ { "Unassigned",				opaque, NULL },
/* 206 */ { "Unassigned",				opaque, NULL },
/* 207 */ { "Unassigned",				opaque, NULL },
/* 208 */ { "PXELINUX Magic",				opaque, NULL },
/* 209 */ { "PXE Configuration file",			string, &hf_dhcp_option_pxe_config_file },
/* 210 */ { "PXE Path Prefix",				string, &hf_dhcp_option_pxe_path_prefix },
/* 211 */ { "Reboot Time",				opaque, NULL },
/* 212 */ { "6RD",					opaque, NULL },
/* 213 */ { "V4 Access Domain",				opaque, NULL },
/* 214 */ { "Unassigned",				opaque, NULL },
/* 215 */ { "Unassigned",				opaque, NULL },
/* 216 */ { "Unassigned",				opaque, NULL },
/* 217 */ { "Unassigned",				opaque, NULL },
/* 218 */ { "Unassigned",				opaque, NULL },
/* 219 */ { "Unassigned",				opaque, NULL },
/* 220 */ { "Subnet Allocation",			opaque, NULL },
/* 221 */ { "Virtual Subnet Selection",			opaque, NULL },
/* 222 */ { "Unassigned",				opaque, NULL },
/* 223 */ { "Unassigned",				opaque, NULL },
/* 224 */ { "Private",					opaque, NULL },
/* 225 */ { "Private",					opaque, NULL },
/* 226 */ { "Private",					opaque, NULL },
/* 227 */ { "Private",					opaque, NULL },
/* 228 */ { "Private",					opaque, NULL },
/* 229 */ { "Private",					opaque, NULL },
/* 230 */ { "Private",					opaque, NULL },
/* 231 */ { "Private",					opaque, NULL },
/* 232 */ { "Private",					opaque, NULL },
/* 233 */ { "Private",					opaque, NULL },
/* 234 */ { "Private",					opaque, NULL },
/* 235 */ { "Private",					opaque, NULL },
/* 236 */ { "Private",					opaque, NULL },
/* 237 */ { "Private",					opaque, NULL },
/* 238 */ { "Private",					opaque, NULL },
/* 239 */ { "Private",					opaque, NULL },
/* 240 */ { "Private",					opaque, NULL },
/* 241 */ { "Private",					opaque, NULL },
/* 242 */ { "Private/Avaya IP Telephone",		special, NULL },
/* 243 */ { "Private",					opaque, NULL },
/* 244 */ { "Private",					opaque, NULL },
/* 245 */ { "Private",					opaque, NULL },
/* 246 */ { "Private",					opaque, NULL },
/* 247 */ { "Private",					opaque, NULL },
/* 248 */ { "Private",					opaque, NULL },
/* 249 */ { "Private/Classless Static Route (Microsoft)",	special, NULL},
/* 250 */ { "Private",					opaque, NULL },
/* 251 */ { "Private",					opaque, NULL },
/* 252 */ { "Private/Proxy autodiscovery",		string, &hf_dhcp_option_private_proxy_autodiscovery },
/* 253 */ { "Private",					opaque, NULL },
/* 254 */ { "Private",					opaque, NULL },
/* 255 */ { "End",					opaque, NULL }
};

static void
dhcp_time_in_s_secs_fmt(gchar *s, guint32 v)
{
	/* Only used by option 2 Time Offset, which is deprecated. */
	char* secs_str = signed_time_secs_to_str(NULL, (gint32)v);
	snprintf(s, ITEM_LABEL_LENGTH, "%s (%d)", secs_str, (gint32)v);
	wmem_free(NULL, secs_str);
}

static void
dhcp_time_in_u_secs_fmt(gchar *s, guint32 v)
{
	/* RFC 2131: 3.3 Interpretation and representation of time values */
	if (v != 0xffffffff) {
		char* secs_str = unsigned_time_secs_to_str(NULL, v);
		snprintf(s, ITEM_LABEL_LENGTH, "%s (%d)", secs_str, v);
		wmem_free(NULL, secs_str);
	} else {
		snprintf(s, ITEM_LABEL_LENGTH, "infinity (%d)", v);
	}
}

/*-------------------------------------
 * UAT for BOOTP
 *-------------------------------------
 */
/* UAT entry structure. */
typedef struct {
	guint  opt;
	gchar *text;
	enum field_type ftype;

} uat_dhcp_record_t;

static uat_dhcp_record_t *uat_dhcp_records = NULL;
static uat_t *dhcp_uat = NULL;
static guint num_dhcp_records_uat = 0;
static wmem_list_t *saved_uat_opts = NULL; /* List of previous options from UAT to "free" from dissection */

static void* uat_dhcp_record_copy_cb(void* n, const void* o, size_t siz _U_) {
	uat_dhcp_record_t* new_record = (uat_dhcp_record_t *)n;
	const uat_dhcp_record_t* old_record = (const uat_dhcp_record_t *)o;

	new_record->text = g_strdup(old_record->text);

	return new_record;
}

static bool uat_dhcp_record_update_cb(void* r, char** err) {
	uat_dhcp_record_t* rec = (uat_dhcp_record_t *)r;

	if ((rec->opt == 0) || (rec->opt >=DHCP_OPT_NUM-1)) {
		*err = ws_strdup_printf("Option must be between 1 and %d", DHCP_OPT_NUM-2);
		return FALSE;
	}
	return TRUE;
}

static void uat_dhcp_record_free_cb(void*r) {
	uat_dhcp_record_t* rec = (uat_dhcp_record_t *)r;

	g_free(rec->text);
}

UAT_DEC_CB_DEF(uat_dhcp_records, opt, uat_dhcp_record_t)
UAT_CSTRING_CB_DEF(uat_dhcp_records, text, uat_dhcp_record_t)
UAT_VS_DEF(uat_dhcp_records, ftype, uat_dhcp_record_t, enum field_type, special, "string")


static struct opt_info* dhcp_get_opt(unsigned int idx)
{
	if(idx>=DHCP_OPT_NUM)
		return NULL;

	return &dhcp_opt[idx];
}

static const char *
dhcp_get_opt_text(unsigned int idx)
{
	if(idx>=DHCP_OPT_NUM)
		return "unknown";
	return dhcp_opt[idx].text;
}

struct basic_types_hfs {
	gint* bytes;
	gint* ipv4;
	gint* ipv4_list;
	gint* string;
	gint* val_boolean;
	gint* val_u_byte;
	gint* val_u_short;
	gint* val_u_short_list;
	gint* val_u_long;
	gint* time_in_s_secs;
	gint* time_in_u_secs;
};

/* Handle "basic" datatypes adding to a tree */
static int
dhcp_handle_basic_types(packet_info *pinfo, proto_tree *tree, proto_item *item, tvbuff_t *tvb,
			 enum field_type ftype, int offset, int total_len,
			 gint *hf, struct basic_types_hfs* hf_default)
{
	int	i, left;
	int	consumed = 0;

	switch (ftype) {
	case bytes:
		if (hf != NULL)
			proto_tree_add_item(tree, *hf, tvb, offset, total_len, ENC_BIG_ENDIAN);
		else if (hf_default->bytes != NULL)
			proto_tree_add_item(tree, *hf_default->bytes, tvb, offset, total_len, ENC_BIG_ENDIAN);
		consumed = total_len;
		break;

	case ipv4:
		if (total_len != 4) {
			expert_add_info_format(pinfo, item, &ei_dhcp_bad_length, "length isn't 4");
			break;
		}

		if (hf != NULL)
			proto_tree_add_item(tree, *hf, tvb, offset, 4, ENC_BIG_ENDIAN);
		else if (hf_default->ipv4 != NULL)
			proto_tree_add_item(tree, *hf_default->ipv4, tvb, offset, 4, ENC_BIG_ENDIAN);

		/* Show IP address in root of option */
		proto_item_append_text(tree, " (%s)", tvb_ip_to_str(pinfo->pool, tvb, offset));
		consumed = 4;
		break;

	case ipv4_list:
		for (i = offset, left = total_len; left > 0; i += 4, left -= 4) {
			if (left < 4) {
				expert_add_info_format(pinfo, item, &ei_dhcp_bad_length, "Option length isn't a multiple of 4");
				break;
			}

			if (hf != NULL)
				proto_tree_add_item(tree, *hf, tvb, i, 4, ENC_BIG_ENDIAN);
			else if (hf_default->ipv4_list != NULL)
				proto_tree_add_item(tree, *hf_default->ipv4_list, tvb, i, 4, ENC_BIG_ENDIAN);
			consumed += 4;
		}

		break;

	case string:
		if (hf != NULL)
			proto_tree_add_item(tree, *hf, tvb, offset, total_len, ENC_BIG_ENDIAN);
		else if (hf_default->string != NULL)
			proto_tree_add_item(tree, *hf_default->string, tvb, offset, total_len, ENC_BIG_ENDIAN);
		consumed = total_len;
		break;

	case val_boolean:
		if (total_len != 1) {
			expert_add_info_format(pinfo, item, &ei_dhcp_bad_length, "length isn't 1");
			break;
		}

		if (hf != NULL)
			proto_tree_add_item(tree, *hf, tvb, offset, 1, ENC_BIG_ENDIAN);
		else if (hf_default->val_boolean != NULL)
			proto_tree_add_item(tree, *hf_default->val_boolean, tvb, offset, 1, ENC_BIG_ENDIAN);
		consumed = 1;
		break;

	case val_u_byte:
		if (total_len != 1) {
			expert_add_info_format(pinfo, item, &ei_dhcp_bad_length, "length isn't 1");
			break;
		}

		if (hf != NULL)
			proto_tree_add_item(tree, *hf, tvb, offset, 1, ENC_BIG_ENDIAN);
		else if (hf_default->val_u_byte != NULL)
			proto_tree_add_item(tree, *hf_default->val_u_byte, tvb, offset, 1, ENC_BIG_ENDIAN);
		consumed = 1;
		break;

	case val_u_short:
		if (total_len != 2) {
			expert_add_info_format(pinfo, item, &ei_dhcp_bad_length, "length isn't 2");
			break;
		}

		if (hf != NULL)
			proto_tree_add_item(tree, *hf, tvb, offset, 2, ENC_BIG_ENDIAN);
		else if (hf_default->val_u_short != NULL)
			proto_tree_add_item(tree, *hf_default->val_u_short, tvb, offset, 2, ENC_BIG_ENDIAN);
		consumed = 2;
		break;

	case val_u_le_short:
		if (total_len != 2) {
			expert_add_info_format(pinfo, item, &ei_dhcp_bad_length, "length isn't 2");
			break;
		}

		if (hf != NULL)
			proto_tree_add_item(tree, *hf, tvb, offset, 2, ENC_LITTLE_ENDIAN);
		else if (hf_default->val_u_short != NULL)
			proto_tree_add_item(tree, *hf_default->val_u_short, tvb, offset, 2, ENC_LITTLE_ENDIAN);
		consumed = 2;
		break;

	case val_u_short_list:
		for (i = offset, left = total_len; left > 0; i += 2, left -= 2) {
			if (left < 2) {
				expert_add_info_format(pinfo, item, &ei_dhcp_bad_length, "Option length isn't a multiple of 2");
				break;
			}

			if (hf != NULL)
				proto_tree_add_item(tree, *hf, tvb, i, 2, ENC_BIG_ENDIAN);
			else if (hf_default->val_u_short_list != NULL)
				proto_tree_add_item(tree, *hf_default->val_u_short_list, tvb, i, 2, ENC_BIG_ENDIAN);
			consumed += 2;
		}
		break;

	case val_u_long:
		if (total_len != 4) {
			expert_add_info_format(pinfo, item, &ei_dhcp_bad_length, "length isn't 4");
			break;
		}

		if (hf != NULL)
			proto_tree_add_item(tree, *hf, tvb, offset, 4, ENC_BIG_ENDIAN);
		else if (hf_default->val_u_long != NULL)
			proto_tree_add_item(tree, *hf_default->val_u_long, tvb, offset, 4, ENC_BIG_ENDIAN);
		consumed = 4;
		break;

	case time_in_s_secs:
		if (total_len != 4) {
			expert_add_info_format(pinfo, item, &ei_dhcp_bad_length, "length isn't 4");
			break;
		}

		if (hf != NULL) {
			proto_tree_add_item(tree, *hf, tvb, offset, 4, ENC_BIG_ENDIAN);
		}
		else if (hf_default->time_in_s_secs != NULL)
			proto_tree_add_item(tree, *hf_default->time_in_s_secs, tvb, offset, 4, ENC_BIG_ENDIAN);

		consumed = 4;
		break;

	case time_in_u_secs:
		if (total_len != 4) {
			expert_add_info_format(pinfo, item, &ei_dhcp_bad_length, "length isn't 4");
			break;
		}

		if (hf != NULL) {
			proto_tree_add_item(tree, *hf, tvb, offset, 4, ENC_BIG_ENDIAN);
		}
		else if (hf_default->time_in_u_secs != NULL)
			proto_tree_add_item(tree, *hf_default->time_in_u_secs, tvb, offset, 4, ENC_BIG_ENDIAN);
		consumed = 4;
		break;
	default:
		/* Ignore other field_types */
		break;
	}

	return consumed;
}

static int
dissect_dhcpopt_basic_type(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, void* data)
{
	struct opt_info *opt;
	dhcp_option_data_t *option_data = (dhcp_option_data_t*)data;
	struct basic_types_hfs default_hfs = {
		&hf_dhcp_option_value,
		&hf_dhcp_option_value_ip_address,
		&hf_dhcp_option_value_ip_address,
		&hf_dhcp_option_value_stringz,
		&hf_dhcp_option_value_boolean,
		&hf_dhcp_option_value_8,
		&hf_dhcp_option_value_16,
		&hf_dhcp_option_value_16,
		&hf_dhcp_option_value_u32,
		&hf_dhcp_option_value_s_secs,
		&hf_dhcp_option_value_u_secs,
	};

	opt = dhcp_get_opt(option_data->option);
	if (opt == NULL)
		return 0;

	return dhcp_handle_basic_types(pinfo, tree, tree, tvb, opt->ftype,
						      0, tvb_reported_length(tvb), opt->phf, &default_hfs);
}

/* Returns the number of bytes consumed by this option. */
static int
dhcp_option(tvbuff_t *tvb, packet_info *pinfo, proto_tree *bp_tree, int voff,
	     int eoff, gboolean first_pass, gboolean *at_end, const char **dhcp_type_p,
	     const guint8 **vendor_class_id_p, guint8 *overload_p)
{
	struct opt_info *opt;
	guchar		 code = tvb_get_guint8(tvb, voff);
	int		 optlen;
	int		 i, consumed;
	proto_tree	*v_tree;
	proto_item	*vti, *ti_value;
	tvbuff_t *option_tvb;
	dhcp_option_data_t option_data;

	/* Options whose length isn't "optlen + 2". */
	switch (code) {

	case 0:		/* Padding */
		/* check how much padding we have */
		for (i = voff + 1; i < eoff; i++ ) {
			if (tvb_get_guint8(tvb, i) != 0) {
				break;
			}
		}
		i = i - voff;
		if (!first_pass) {
			if (bp_tree != NULL) {
				vti = proto_tree_add_uint_format_value(bp_tree, hf_dhcp_option_type,
						tvb, voff, 1, 0, "(0) Padding");
				v_tree = proto_item_add_subtree(vti, ett_dhcp_option);
				proto_tree_add_item(v_tree, hf_dhcp_option_padding, tvb, voff, i, ENC_NA);
			}
		}
		consumed = i;
		return consumed;

	case 255:	/* End Option */
		if (!first_pass) {
			if (bp_tree != NULL) {
				vti = proto_tree_add_uint_format_value(bp_tree, hf_dhcp_option_type,
						tvb, voff, 1, 0, "(255) End");
				v_tree = proto_item_add_subtree(vti, ett_dhcp_option);
				if (*overload_p)
					proto_tree_add_item(v_tree, hf_dhcp_option_end_overload, tvb, voff, 1, ENC_BIG_ENDIAN);
				else
					proto_tree_add_item(v_tree, hf_dhcp_option_end, tvb, voff, 1, ENC_BIG_ENDIAN);
			}
		}
		*at_end = TRUE;
		consumed = 1;
		return consumed;
	}

	/*
	 * Get the length of the option, and the number of bytes it
	 * consumes (the length doesn't include the option code or
	 * length bytes).
	 *
	 * On the first pass, check first whether we have the length
	 * byte, so that we don't throw an exception; if we throw an
	 * exception in the first pass, which is only checking for options
	 * whose values we need in order to properly dissect the packet
	 * on the second pass, we won't actually dissect the options, so
	 * you won't be able to see which option had the problem.
	 */
	if (first_pass) {
		if (!tvb_bytes_exist(tvb, voff+1, 1)) {
			/*
			 * We don't have the length byte; just return 1
			 * as the number of bytes we consumed, to count
			 * the code byte.
			 */
			return 1;
		}
	}
	optlen = tvb_get_guint8(tvb, voff+1);
	consumed = optlen + 2;

	/*
	 * In the first pass, we don't put anything into the protocol
	 * tree; we just check for some options we have to look at
	 * in order to properly process the packet:
	 *
	 *	52 (Overload) - we need this to properly dissect the
	 *	   file and sname fields
	 *
	 *	53 (DHCP message type) - if this is present, this is DHCP
	 *
	 *	60 (Vendor class identifier) - we need this in order to
	 *	   interpret the vendor-specific info
	 *
	 * We also check, before fetching anything, to make sure we
	 * have the entire item we're fetching, so that we don't throw
	 * an exception.
	 */
	if (first_pass) {
		if (tvb_bytes_exist(tvb, voff+2, consumed-2)) {
			switch (code) {

			case 52:
				*overload_p = tvb_get_guint8(tvb, voff+2);
				break;

			case 53:
				*dhcp_type_p =
				    val_to_str(tvb_get_guint8(tvb, voff+2),
					opt53_text,
					"Unknown Message Type (0x%02x)");
				break;

			case 60:
				*vendor_class_id_p =
					tvb_get_string_enc(pinfo->pool,
					tvb, voff+2, consumed-2, ENC_ASCII);
				break;
			case 119:
				rfc3396_dns_domain_search_list.total_number_of_block++;
				break;
			case 120:
				rfc3396_sip_server.total_number_of_block++;
				break;
			}
		}

		/*
		 * We don't do anything else here.
		 */
		return consumed;
	}

	/* Normal cases */
	opt = dhcp_get_opt(code);
	if (opt == NULL)
	{
		/* THIS SHOULD NEVER HAPPEN!!! */
		return consumed;
	}

	vti = proto_tree_add_uint_format_value(bp_tree, hf_dhcp_option_type,
		tvb, voff, consumed, code, "(%d) %s", code, opt->text);
	v_tree = proto_item_add_subtree(vti, ett_dhcp_option);
	proto_tree_add_item(v_tree, hf_dhcp_option_length, tvb, voff+1, 1, ENC_BIG_ENDIAN);

	ti_value = proto_tree_add_item(v_tree, hf_dhcp_option_value, tvb, voff+2, optlen, ENC_NA);
	proto_item_set_hidden(ti_value);

	/* prepate data for dissector table */
	option_tvb = tvb_new_subset_length(tvb, voff+2, optlen);
	option_data.option = code;
	option_data.overload = overload_p;
	option_data.dhcp_type = *dhcp_type_p;
	option_data.vendor_class_id = *vendor_class_id_p;
	option_data.orig_tvb = tvb;

	if (!dissector_try_uint_new(dhcp_option_table, code, option_tvb, pinfo, v_tree, FALSE, &option_data)) {
		/* hf_dhcp_option_value is already in tree, just make it visible */
		proto_item_set_visible(ti_value);
	}

	return consumed;
}

static int
dissect_dhcpopt_policy_filter(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, void* data _U_)
{
	int offset = 0;

	while (tvb_reported_length_remaining(tvb, offset) >= 8) {
		proto_tree_add_item(tree, hf_dhcp_option_policy_filter_ip, tvb, offset, 4, ENC_BIG_ENDIAN);
		offset += 4;
		proto_tree_add_item(tree, hf_dhcp_option_policy_filter_subnet_mask, tvb, offset, 4, ENC_BIG_ENDIAN);
		offset += 4;
	}

	if (tvb_reported_length_remaining(tvb, offset) > 0) {
		expert_add_info_format(pinfo, tree, &ei_dhcp_bad_length, "Option length isn't a multiple of 8");
	}

	return tvb_captured_length(tvb);
}

static int
dissect_dhcpopt_static_route(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, void* data _U_)
{
	int offset = 0;

	while (tvb_reported_length_remaining(tvb, offset) >= 8) {
		proto_tree_add_item(tree, hf_dhcp_option_static_route_ip, tvb, offset, 4, ENC_BIG_ENDIAN);
		offset += 4;
		proto_tree_add_item(tree, hf_dhcp_option_static_route_router, tvb, offset, 4, ENC_BIG_ENDIAN);
		offset += 4;
	}

	if (tvb_reported_length_remaining(tvb, offset) > 0) {
		expert_add_info_format(pinfo, tree, &ei_dhcp_bad_length, "Option length isn't a multiple of 8");
	}

	return tvb_captured_length(tvb);
}

static int
dissect_dhcpopt_vendor_specific_info(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, void* data)
{
	heur_dtbl_entry_t *hdtbl_entry;
	proto_tree *vendor_tree;

	if (!dissector_try_heuristic(dhcp_vendor_info_subdissector, tvb, pinfo, tree, &hdtbl_entry, data)) {
		/* Default Vendor-Specific Info.. display in bytes */
		vendor_tree = proto_item_add_subtree(tree, ett_dhcp_option);
		proto_tree_add_item(vendor_tree, hf_dhcp_option43_value, tvb, 0, tvb_reported_length(tvb), ENC_NA);
	}

	return tvb_captured_length(tvb);
}

static int
dissect_dhcpopt_option_overload(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, void* data)
{
	int offset = 0;
	int	suboffset, suboffset_end;
	gboolean at_end;
	dhcp_option_data_t *option_data = (dhcp_option_data_t*)data;
	guint32	byte;

	if (tvb_reported_length(tvb) < 1) {
		expert_add_info_format(pinfo, tree, &ei_dhcp_bad_length, "length isn't >= 1");
		return 1;
	}

	proto_tree_add_item_ret_uint(tree, hf_dhcp_option_option_overload, tvb, offset, 1, ENC_BIG_ENDIAN, &byte);

	/* Just in case we find an option 52 in sname or file */
	if ((*option_data->overload >= 1) && (*option_data->overload <= 3)) {
		if (byte & OPT_OVERLOAD_SNAME) {
			proto_item *oti;
			proto_tree *overload_tree = proto_tree_add_subtree(tree, option_data->orig_tvb,
				SERVER_NAME_OFFSET, SERVER_NAME_LEN, ett_dhcp_server_hostname, &oti,
				"Server host name option overload");
			guint8 ignore_overload = 0;
			suboffset = SERVER_NAME_OFFSET;
			suboffset_end = SERVER_NAME_OFFSET + SERVER_NAME_LEN;
			at_end = FALSE;
			rfc3396_dns_domain_search_list.index_current_block = 0;
			rfc3396_sip_server.index_current_block = 0;
			while (suboffset < suboffset_end && !at_end) {
				suboffset += dhcp_option(option_data->orig_tvb, pinfo, overload_tree, suboffset,
					suboffset_end, FALSE, &at_end,
					&option_data->dhcp_type, &option_data->vendor_class_id,
					&ignore_overload);
			}
			if (!at_end)
			{
				expert_add_info(pinfo, oti, &hf_dhcp_opt_overload_sname_end_missing);
			}
		}
		if (byte & OPT_OVERLOAD_FILE) {
			proto_item *oti;
			proto_tree *overload_tree = proto_tree_add_subtree(tree, option_data->orig_tvb,
				FILE_NAME_OFFSET, FILE_NAME_LEN, ett_dhcp_filename_option, &oti,
				"Boot file name option overload");
			guint8 ignore_overload = 0;
			suboffset = FILE_NAME_OFFSET;
			suboffset_end = FILE_NAME_OFFSET + FILE_NAME_LEN;
			at_end = FALSE;
			rfc3396_dns_domain_search_list.index_current_block = 0;
			rfc3396_sip_server.index_current_block = 0;
			while (suboffset < suboffset_end && !at_end) {
				suboffset += dhcp_option(option_data->orig_tvb, pinfo, overload_tree, suboffset,
					suboffset_end, FALSE, &at_end,
					&option_data->dhcp_type, &option_data->vendor_class_id,
					&ignore_overload);
			}
			if (!at_end)
			{
				expert_add_info(pinfo, oti, &hf_dhcp_opt_overload_file_end_missing);
			}
		}
		/* The final end option is not in overload */
		*option_data->overload = 0;
	}

	return tvb_captured_length(tvb);
}

static int
dissect_dhcpopt_dhcp(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree, void* data _U_)
{
	guint32 type;

	proto_tree_add_item_ret_uint(tree, hf_dhcp_option_dhcp, tvb, 0, 1, ENC_NA, &type);
	/* Show the message type name on the Message Type option, and in the protocol root */
	proto_item_append_text(tree, " (%s)", val_to_str(type, opt53_text, "Unknown Message Type (0x%02x)"));
	proto_item_append_text(proto_item_get_parent(tree), " (%s)", val_to_str(type, opt53_text, "Unknown Message Type (0x%02x)"));

	return tvb_captured_length(tvb);
}

static int
dissect_dhcpopt_param_request_list(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree, void* data _U_)
{
	int offset = 0;
	guint8 byte;

	while (tvb_reported_length_remaining(tvb, offset) > 0) {
		byte = tvb_get_guint8(tvb, offset);
		proto_tree_add_uint_format_value(tree, hf_dhcp_option_parameter_request_list_item,
				tvb, offset, 1, byte, "(%d) %s", byte, dhcp_get_opt_text(byte));
		offset++;
	}

	return tvb_captured_length(tvb);
}

static int
dissect_dhcpopt_vendor_class_identifier(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, void* data)
{
	heur_dtbl_entry_t *hdtbl_entry;

	/*
	 * XXX - RFC 2132 says this is a string of octets;
	 * should we check for non-printables?
	 */
	proto_tree_add_item(tree, hf_dhcp_option_vendor_class_id, tvb, 0, tvb_reported_length(tvb), ENC_ASCII);
	dissector_try_heuristic(dhcp_vendor_id_subdissector, tvb, pinfo, tree, &hdtbl_entry, data);

	return tvb_captured_length(tvb);
}

static int
dissect_dhcpopt_client_identifier(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, void* data _U_)
{
	int offset = 0;
	int length = tvb_reported_length(tvb);
	guchar byte;

	if (length > 0)
		byte = tvb_get_guint8(tvb, offset);
	else
		byte = 0;

	/* We *MAY* use hwtype/hwaddr. If we have 7 bytes, I'll
		guess that the first is the hwtype, and the last 6
		are the hw addr */
	/* See https://www.iana.org/assignments/arp-parameters */
	/* RFC2132 9.14 Client-identifier has the following to say:
		A hardware type of 0 (zero) should be used when the value
		field contains an identifier other than a hardware address
		(e.g. a fully qualified domain name). */

	if (length == 7 && byte > 0 && byte < 48) {
		proto_tree_add_item(tree, hf_dhcp_hw_type, tvb, offset, 1, ENC_NA);

		if (byte == ARPHRD_ETHER || byte == ARPHRD_IEEE802)
			proto_tree_add_item(tree, hf_dhcp_hw_ether_addr, tvb, offset+1, 6, ENC_NA);
		else
			proto_tree_add_string(tree, hf_dhcp_client_hardware_address, tvb, offset+1, 6,
				tvb_arphrdaddr_to_str(pinfo->pool, tvb, offset+1, 6, byte));
	} else if (length == 17 && byte == 0) {
		/* Identifier is a UUID */
		proto_tree_add_item(tree, hf_dhcp_client_identifier_uuid, tvb, offset + 1, 16, dhcp_uuid_endian);

	/* From RFC 4361 paragraph 6.1 DHCPv4 Client Behavior:
		To send an RFC 3315-style binding identifier in a DHCPv4 'client
		identifier' option, the type of the 'client identifier' option is set
		to 255.	*/
	} else if (byte == 255) {
		guint16	duidtype;
		guint16	hwtype;

		/*	The type field is immediately followed by the IAID, which is
			an opaque 32-bit quantity	*/
		proto_tree_add_string(tree, hf_dhcp_client_id_iaid, tvb, offset+1, 4,
			tvb_arphrdaddr_to_str(pinfo->pool, tvb, offset+1, 4, byte));
		offset += 5;
		duidtype = tvb_get_ntohs(tvb, offset);
		proto_tree_add_item(tree, hf_dhcp_client_id_duid_type, tvb, offset, 2, ENC_BIG_ENDIAN);
		switch (duidtype) {
		case DUID_LLT:
			if (length < 8) {
				expert_add_info(pinfo, tree, &ei_dhcp_mal_duid);
				break;
			}
			hwtype=tvb_get_ntohs(tvb, offset + 2);
			proto_tree_add_item(tree, hf_dhcp_client_identifier_duid_llt_hw_type,
					tvb, offset + 2, 2, ENC_BIG_ENDIAN);

			/* XXX seconds since Jan 1 2000 */
			proto_tree_add_item(tree, hf_dhcp_client_identifier_time, tvb, offset + 4, 4, ENC_BIG_ENDIAN);
			if (length > 8) {
				proto_tree_add_string(tree, hf_dhcp_client_identifier_link_layer_address, tvb, offset + 8,
					length - 13, tvb_arphrdaddr_to_str(pinfo->pool, tvb, offset+8, length-13, hwtype));
				if(DHCP_HW_IS_ETHER(hwtype, length-13)) {
					proto_tree_add_item(tree, hf_dhcp_client_identifier_link_layer_address_ether,
						tvb, offset+8, length-13, ENC_NA);
				}
			}
			break;
		case DUID_EN:
			if (length < 6) {
				expert_add_info(pinfo, tree, &ei_dhcp_mal_duid);
				break;
			}
			proto_tree_add_item(tree, hf_dhcp_client_identifier_enterprise_num, tvb, offset + 2, 4, ENC_BIG_ENDIAN);
			if (length > 6) {
				proto_tree_add_item(tree, hf_dhcp_client_identifier, tvb, offset + 6, length - 11, ENC_NA);
			}
			break;
		case DUID_LL:
			if (length < 4) {
				expert_add_info(pinfo, tree, &ei_dhcp_mal_duid);
				break;
			}
			hwtype=tvb_get_ntohs(tvb, offset + 2);
			proto_tree_add_item(tree, hf_dhcp_client_identifier_duid_ll_hw_type,
					tvb, offset + 2, 2, ENC_BIG_ENDIAN);

			if (length > 4) {
				proto_tree_add_string(tree, hf_dhcp_client_identifier_link_layer_address, tvb, offset + 4,
					length - 9, tvb_arphrdaddr_to_str(pinfo->pool, tvb, offset+4, length-9, hwtype));
				if(DHCP_HW_IS_ETHER(hwtype, length-9)) {
					proto_tree_add_item(tree, hf_dhcp_client_identifier_link_layer_address_ether,
						tvb, offset+4, length-9, ENC_NA);
				}
			}
			break;
		}
	} else if (byte == 0 && length > 1) {
		/* identifier other than a hardware address (e.g. a fully qualified domain name) */
		proto_tree_add_item(tree, hf_dhcp_client_identifier_type, tvb, offset, 1, ENC_NA);
		proto_tree_add_item(tree, hf_dhcp_client_identifier_undef, tvb, offset+1, length-1, ENC_ASCII);
	} else {
		/* otherwise, it's opaque data */
	}

	return tvb_captured_length(tvb);
}

static int
dissect_dhcpopt_user_class_information(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, void* data _U_)
{
	guchar user_class_instance_index = 0;
	int offset = 0;
	proto_item *vtix, *len_item;
	proto_tree *o77_v_tree;
	guint class_length, uci_len = tvb_reported_length(tvb);
	if (uci_len < 2) {
		expert_add_info_format(pinfo, tree, &ei_dhcp_bad_length, "length isn't >= 2");
		return 1;
	}

	/* First byte is the length of User Class data. If it is zero, then let's assume this
	 * is a Microsoft variant that has the two-byte length field with most-significant byte
	 * as zero.
	 */
	guint16 ms_data_length = tvb_get_guint16(tvb, offset, ENC_BIG_ENDIAN);
	if (ms_data_length <= 0xff) {
		/* MSB is zero, this is Microsoft */
		proto_tree_add_uint(tree, hf_dhcp_option77_user_class_binary_data_length, tvb, offset, 2, ms_data_length);
		offset += 2;
		proto_tree_add_item(tree, hf_dhcp_option77_user_class_binary_data, tvb, offset, ms_data_length, ENC_STRING);
		offset += ms_data_length;
		/* User Class Binary Data is padded to 4-byte boundary */
		guint16 padding_length = (4 - (ms_data_length % 4)) & 0x3;
		if (padding_length > 0) {
			proto_tree_add_item(tree, hf_dhcp_option77_user_class_padding, tvb, offset, padding_length, ENC_NA);
			offset += padding_length;
		}
		guint32 len;
		proto_tree_add_item_ret_uint(tree, hf_dhcp_option77_user_class_name_length, tvb, offset, 2, ENC_BIG_ENDIAN, &len);
		offset += 2;
		proto_tree_add_item(tree, hf_dhcp_option77_user_class_name, tvb, offset, len, ENC_UTF_16);
		offset += len;
		proto_tree_add_item_ret_uint(tree, hf_dhcp_option77_user_class_description_length, tvb, offset, 2, ENC_BIG_ENDIAN, &len);
		offset += 2;
		proto_tree_add_item(tree, hf_dhcp_option77_user_class_description, tvb, offset, len, ENC_UTF_16);

		return tvb_captured_length(tvb);
	}

	while (tvb_reported_length_remaining(tvb, offset) > 0) {
		class_length = tvb_get_guint8(tvb, offset);
		if (class_length >= uci_len) {
			/* Having the sum of the User Class data lengths exceed the total User Option Information length (uci_len)
			 * is a violation of RFC 3004. In that case the remaining data is treated as a non-conformant (text) option.
			 * This check will also catch the Microsoft 'variation' implementation (when Vendor class identifier contains
			 * "MSFT 5.0") such as "RRAS.Microsoft" and others like "iPXE".
			 * In the unlikely case that the first character can be interpreted as a valid length the next iteration
			 * of this while loop will catch that.
			 * https://gitlab.com/wireshark/wireshark/-/issues/16349
			 * https://docs.microsoft.com/en-us/openspecs/windows_protocols/ms-dhcpe/fe8a2dd4-1e8c-4546-bacd-4ae10de02058
			 */
			proto_item *expert_ti = proto_tree_add_item(tree, hf_dhcp_option77_user_class_text, tvb, offset, uci_len, ENC_ASCII);
			expert_add_info(pinfo, expert_ti, &ei_dhcp_nonstd_option_data);
			break;
		}

		/* Create subtree for instance of User Class. */
		vtix = proto_tree_add_uint_format_value(tree, hf_dhcp_option77_user_class,
				tvb, offset, 1, user_class_instance_index, "[%d]", user_class_instance_index);
		o77_v_tree = proto_item_add_subtree(vtix, ett_dhcp_option77_instance);

		/* Add length for instance of User Class. */
		len_item = proto_tree_add_uint(o77_v_tree, hf_dhcp_option77_user_class_length, tvb, offset, 1, class_length);
		proto_item_set_len(vtix, class_length+1);
		offset++;

		if (class_length == 0) {
			expert_add_info_format(pinfo, len_item, &ei_dhcp_bad_length, "UC_Len_%u isn't >= 1 (UC_Len_%u = 0)", user_class_instance_index, user_class_instance_index);
			break;
		}

		/* Add data for instance of User Class. */
		proto_tree_add_item(o77_v_tree, hf_dhcp_option77_user_class_data, tvb, offset, class_length, ENC_NA);

		offset += class_length;
		uci_len -= class_length + 1;
		user_class_instance_index++;
	}

	return tvb_captured_length(tvb);
}

static int
dissect_dhcpopt_slp_directory_agent(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, void* data _U_)
{
	int offset = 0;
	guint32 byte;

	if (tvb_reported_length(tvb) < 1) {
		expert_add_info_format(pinfo, tree, &ei_dhcp_bad_length, "length isn't >= 1");
		return 1;
	}

	proto_tree_add_item_ret_uint(tree, hf_dhcp_option_slp_directory_agent_value, tvb, offset, 1, ENC_BIG_ENDIAN, &byte);
	offset++;

	if (byte == 0x80) {
		if (tvb_reported_length_remaining(tvb, offset) == 0)
			return offset;

		offset++;
	}

	while (tvb_reported_length_remaining(tvb, offset) >= 4) {
		proto_tree_add_item(tree, hf_dhcp_option_slp_directory_agent_slpda_address, tvb, offset, 4, ENC_BIG_ENDIAN);
		offset += 4;
	}

	if (tvb_reported_length_remaining(tvb, offset) > 0) {
		expert_add_info_format(pinfo, tree, &ei_dhcp_bad_length, "Option length isn't a multiple of 4");
	}

	return tvb_captured_length(tvb);
}

static int
dissect_dhcpopt_slp_service_scope(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree, void* data _U_)
{
	int offset = 0;

	proto_tree_add_item(tree, hf_dhcp_option_slp_service_scope_value, tvb, offset, 1, ENC_BIG_ENDIAN);

	offset++;
	proto_tree_add_item(tree, hf_dhcp_option_slp_service_scope_string, tvb, offset, tvb_reported_length_remaining(tvb, offset), ENC_ASCII);

	return tvb_captured_length(tvb);
}

static int
dissect_dhcpopt_client_full_domain_name(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, void* data _U_)
{
	static int * const fqdn_hf_flags[] = {
		&hf_dhcp_fqdn_mbz,
		&hf_dhcp_fqdn_n,
		&hf_dhcp_fqdn_e,
		&hf_dhcp_fqdn_o,
		&hf_dhcp_fqdn_s,
		NULL
	};
	guint8 fqdn_flags;
	int offset = 0, length = tvb_reported_length(tvb);
	const guchar	*dns_name;
	gint		dns_name_len;

	if (length < 3) {
		expert_add_info_format(pinfo, tree, &ei_dhcp_bad_length, "length isn't >= 3");
		return 1;
	}

	fqdn_flags = tvb_get_guint8(tvb, offset);
	proto_tree_add_bitmask(tree, tvb, offset, hf_dhcp_fqdn_flags,
				ett_dhcp_fqdn_flags, fqdn_hf_flags, ENC_BIG_ENDIAN);

	/* XXX: use code from packet-dns for return code decoding */
	proto_tree_add_item(tree, hf_dhcp_fqdn_rcode1, tvb, offset+1, 1, ENC_BIG_ENDIAN);
	/* XXX: use code from packet-dns for return code decoding */
	proto_tree_add_item(tree, hf_dhcp_fqdn_rcode2, tvb, offset+2, 1, ENC_BIG_ENDIAN);

	if (length > 3) {
		if (fqdn_flags & F_FQDN_E) {
			get_dns_name(tvb, offset+3, length-3, offset+3, (const char **)&dns_name, &dns_name_len);
			proto_tree_add_string(tree, hf_dhcp_fqdn_name,
				tvb, offset+3, length-3, format_text(pinfo->pool, dns_name, dns_name_len));
		} else {
			proto_tree_add_item(tree, hf_dhcp_fqdn_asciiname, tvb, offset+3, length-3, ENC_ASCII);
		}
	}

	return tvb_captured_length(tvb);
}

static int
dissect_dhcpopt_novell_servers(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, void* data _U_)
{
	int offset = 0;

	/* Option 85 can be sent as a string */
	/* Added by Greg Morris (gmorris[AT]novell.com) */
	if (novell_string) {
		proto_tree_add_item(tree, hf_dhcp_option_novell_dss_string, tvb, offset, tvb_reported_length(tvb), ENC_ASCII);
	} else {
		/* IP addresses */
		while (tvb_reported_length_remaining(tvb, offset) >= 4) {

			proto_tree_add_item(tree, hf_dhcp_option_novell_dss_ip, tvb, offset, 4, ENC_BIG_ENDIAN);
			offset += 4;
		}

		if (tvb_reported_length_remaining(tvb, offset) > 0) {
			expert_add_info_format(pinfo, tree, &ei_dhcp_bad_length, "Option length isn't a multiple of 4");
		}
	}

	return tvb_captured_length(tvb);
}

static int
dissect_dhcpopt_dhcp_authentication(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, void* data)
{
	int offset = 0;
	dhcp_option_data_t *option_data = (dhcp_option_data_t*)data;
	guint32 protocol, rdm;
	guint8 algorithm;

	if (tvb_reported_length(tvb) < 11) {
		expert_add_info_format(pinfo, tree, &ei_dhcp_bad_length, "length isn't >= 11");
		return 1;
	}

	proto_tree_add_item_ret_uint(tree, hf_dhcp_option_dhcp_authentication_protocol, tvb, offset, 1, ENC_BIG_ENDIAN, &protocol);
	offset++;

	algorithm = tvb_get_guint8(tvb, offset);
	switch (protocol) {

	case AUTHEN_PROTO_DELAYED_AUTHEN:
		proto_tree_add_item(tree, hf_dhcp_option_dhcp_authentication_alg_delay, tvb, offset, 1, ENC_BIG_ENDIAN);
		break;

	default:
		proto_tree_add_item(tree, hf_dhcp_option_dhcp_authentication_algorithm, tvb, offset, 1, ENC_BIG_ENDIAN);
		break;
	}
	offset++;

	proto_tree_add_item_ret_uint(tree, hf_dhcp_option_dhcp_authentication_rdm, tvb, offset, 1, ENC_BIG_ENDIAN, &rdm);
	offset++;

	switch (rdm) {

	case AUTHEN_RDM_MONOTONIC_COUNTER:
		proto_tree_add_item(tree, hf_dhcp_option_dhcp_authentication_rdm_replay_detection, tvb, offset, 8, ENC_BIG_ENDIAN);
		break;

	default:
		proto_tree_add_item(tree, hf_dhcp_option_dhcp_authentication_rdm_rdv, tvb, offset, 8, ENC_ASCII);
		break;
	}
	offset += 8;

	switch (protocol) {

	case AUTHEN_PROTO_DELAYED_AUTHEN:
		switch (algorithm) {

		case AUTHEN_DELAYED_ALGO_HMAC_MD5:
			if (option_data->dhcp_type && !strcmp(option_data->dhcp_type, OPT53_DISCOVER)) {
				/* Discover has no Secret ID nor HMAC MD5 Hash */
				break;
			} else {
				if (tvb_reported_length_remaining(tvb, offset) < 20) {
					expert_add_info_format(pinfo, tree, &ei_dhcp_bad_length, "length isn't >= 20");
					break;
				}

				proto_tree_add_item(tree, hf_dhcp_option_dhcp_authentication_secret_id, tvb, offset, 4, ENC_BIG_ENDIAN);
				offset += 4;
				proto_tree_add_item(tree, hf_dhcp_option_dhcp_authentication_hmac_md5_hash, tvb, offset, 16, ENC_NA);
				break;
			}

		default:
			if (tvb_reported_length_remaining(tvb, offset) == 0)
				break;

			proto_tree_add_item(tree, hf_dhcp_option_dhcp_authentication_information, tvb, offset, tvb_reported_length_remaining(tvb, offset), ENC_ASCII);
			break;
		}
		break;

	default:
		if (tvb_reported_length_remaining(tvb, offset) == 0)
			break;

		proto_tree_add_item(tree, hf_dhcp_option_dhcp_authentication_information, tvb, offset, tvb_reported_length_remaining(tvb, offset), ENC_ASCII);
		break;
	}

	return tvb_captured_length(tvb);
}

static int
dissect_dhcpopt_client_architecture(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, void* data _U_)
{
	int offset = 0;

	while (tvb_reported_length_remaining(tvb, offset) > 1) {
		guint32 architecture_id;
		proto_item *pi;

		pi = proto_tree_add_item_ret_uint(tree, hf_dhcp_option_client_system_architecture, tvb, offset, 2, ENC_BIG_ENDIAN, &architecture_id);
		offset += 2;

		/*
		 * Some Client Architecture IDs are widely misused.  For
		 * details, refer to the comment at the definition of
		 * dhcp_client_arch.
		 *
		 * The most common problem is a client using architecture ID 9
		 * when performing an EFI x64 boot.  Windows Server 2008 WDS
		 * does not recognize ID 9, but most other DHCP servers
		 * (including newer versions of WDS) silently map architecture
		 * ID 9 to x64 in order to accommodate these clients.
		 */
		if (architecture_id == 9) {
			expert_add_info_format(pinfo, pi, &ei_dhcp_option93_client_arch_ambiguous, "Client Architecture ID 9 is often incorrectly used for EFI x64");
		}

		/*
		 * Technically, architecture ID 7 is ambiguous for the same
		 * reason, but it's extremely unlikely to be a real world
		 * problem, so a warning would probably just be unwelcome
		 * noise.
		 */
	}
	if (tvb_reported_length_remaining(tvb, offset) > 0) {
		expert_add_info_format(pinfo, tree, &ei_dhcp_bad_length, "Option length isn't a multiple of 2");
	}

	return tvb_captured_length(tvb);
}

static int
dissect_dhcpopt_client_network_interface_id(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree, void* data _U_)
{
	int offset = 0;
	guint8 id_type;

	id_type = tvb_get_guint8(tvb, offset);
	offset++;

	if (id_type == 0x01) {
		proto_tree_add_item(tree, hf_dhcp_option_client_network_id_major_ver,
							tvb, offset, 1, ENC_LITTLE_ENDIAN);
		offset++;
		proto_tree_add_item(tree, hf_dhcp_option_client_network_id_minor_ver,
							tvb, offset, 1, ENC_LITTLE_ENDIAN);
	}

	return tvb_captured_length(tvb);
}

static int
dissect_dhcpopt_client_identifier_uuid(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, void* data _U_)
{
	int offset = 0, length = tvb_reported_length(tvb);
	guint8 byte;

	if (length > 0)
		byte = tvb_get_guint8(tvb, offset);
	else
		byte = 0;

	/* We *MAY* use hwtype/hwaddr. If we have 7 bytes, I'll
		guess that the first is the hwtype, and the last 6
		are the hw addr */
	/* See https://www.iana.org/assignments/arp-parameters */
	/* RFC2132 9.14 Client-identifier has the following to say:
		A hardware type of 0 (zero) should be used when the value
		field contains an identifier other than a hardware address
		(e.g. a fully qualified domain name). */

	if (length == 7 && byte > 0 && byte < 48) {
		proto_tree_add_item(tree, hf_dhcp_hw_type, tvb, offset, 1, ENC_NA);
		if (byte == ARPHRD_ETHER || byte == ARPHRD_IEEE802)
			proto_tree_add_item(tree, hf_dhcp_hw_ether_addr, tvb, offset+1, 6, ENC_NA);
		else
			proto_tree_add_string(tree, hf_dhcp_client_hardware_address, tvb, offset+1, 6,
				tvb_arphrdaddr_to_str(pinfo->pool, tvb, offset+1, 6, byte));
	} else if (length == 17 && byte == 0) {
		/* Identifier is a UUID */
		proto_tree_add_item(tree, hf_dhcp_client_identifier_uuid, tvb, offset + 1, 16, dhcp_uuid_endian);
	} else {
		/* otherwise, it's opaque data */
	}

	return tvb_captured_length(tvb);
}

static int
dissect_dhcpopt_civic_location(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, void* data _U_)
{
	int offset = 0;

	if (tvb_reported_length(tvb) >= 3)
	{
		proto_tree_add_item(tree, hf_dhcp_option_civic_location_what, tvb, offset, 1, ENC_BIG_ENDIAN);
		offset++;
		proto_tree_add_item(tree, hf_dhcp_option_civic_location_country, tvb, offset, 2, ENC_ASCII);
		offset += 2;

		while (tvb_reported_length_remaining(tvb, offset) >= 2)
		{
			guint32 calength;
			proto_tree_add_item(tree, hf_dhcp_option_civic_location_ca_type, tvb, offset, 1, ENC_BIG_ENDIAN);
			offset++;
			proto_tree_add_item_ret_uint(tree, hf_dhcp_option_civic_location_ca_length, tvb, offset, 1, ENC_BIG_ENDIAN, &calength);
			offset++;

			if (calength == 0)
				continue;

			if (tvb_reported_length_remaining(tvb, offset) >= (int)calength)
			{
				proto_tree_add_item(tree, hf_dhcp_option_civic_location_ca_value, tvb, offset, calength, ENC_ASCII);
				offset += calength;
			}
			else
			{
				expert_add_info(pinfo, tree, &ei_dhcp_option_civic_location_bad_cattype);
				break;
			}
		}
	}

	return tvb_captured_length(tvb);
}

static int
dissect_dhcpopt_name_server_search(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, void* data _U_)
{
	int offset = 0, length = tvb_reported_length(tvb);
	guint16 ns;

	if (length < 2) {
		expert_add_info_format(pinfo, tree, &ei_dhcp_bad_length, "length isn't >= 2");
		return 1;
	} else if (length & 1) {
		expert_add_info_format(pinfo, tree, &ei_dhcp_bad_length, "length (%u) isn't even number", length);
		return 1;
	}

	while (tvb_reported_length_remaining(tvb, offset) > 0) {
		ns = tvb_get_ntohs(tvb, offset);
		/* XXX - Make this a value_string */
		switch (ns) {
		case RFC2937_LOCAL_NAMING_INFORMATION:
			proto_tree_add_string(tree, hf_dhcp_option_dhcp_name_service_search_option, tvb, offset, 2, "Local naming information (e.g., an /etc/hosts file on a UNIX machine) (0)");
			break;
		case RFC2937_DOMAIN_NAME_SERVER_OPTION:
			proto_tree_add_string(tree, hf_dhcp_option_dhcp_name_service_search_option, tvb, offset, 2, "Domain Name Server Option (6)");
			break;
		case RFC2937_NETWORK_INFORMATION_SERVERS_OPTION:
			proto_tree_add_string(tree, hf_dhcp_option_dhcp_name_service_search_option, tvb, offset, 2, "Network Information Servers Option (41)");
			break;
		case RFC2937_NETBIOS_OVER_TCP_IP_NAME_SERVER_OPTION:
			proto_tree_add_string(tree, hf_dhcp_option_dhcp_name_service_search_option, tvb, offset, 2, "NetBIOS over TCP/IP Name Server Option (44)");
			break;
		case RFC2937_NETWORK_INFORMATION_SERVICE_PLUS_SERVERS_OPTION:
			proto_tree_add_string(tree, hf_dhcp_option_dhcp_name_service_search_option, tvb, offset, 2, "Network Information Service+ Servers Option (65)");
			break;
		default:
			expert_add_info_format(pinfo, tree, &ei_dhcp_option_dhcp_name_service_invalid,
						"Invalid Name Service (%u). RFC 2937 defines only 0, 6, 41, 44, and 65 as possible values.", ns);
			break;
		}
		offset += 2;
	}

	return tvb_captured_length(tvb);
}

static int
dissect_dhcpopt_dhcp_domain_search(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, void* data _U_)
{
	int length = tvb_reported_length(tvb);
	gchar		*name_out;
	const guchar	*dns_name;
	gint		dns_name_len;

	/* Encoding Long Options in the Dynamic Host Configuration Protocol (DHCPv4) (RFC 3396) */
	/* Domain Names - Implementation And Specification (RFC 1035) */
	rfc3396_dns_domain_search_list.index_current_block++;
	if (rfc3396_dns_domain_search_list.total_number_of_block > 1) {
		proto_tree_add_string(tree, hf_dhcp_option_dhcp_dns_domain_search_list_rfc_3396_detected, tvb, 0, length,
								wmem_strdup_printf(pinfo->pool, "%u/%u", rfc3396_dns_domain_search_list.index_current_block, rfc3396_dns_domain_search_list.total_number_of_block));
		if (rfc3396_dns_domain_search_list.index_current_block != rfc3396_dns_domain_search_list.total_number_of_block) {
			proto_tree_add_string(tree, hf_dhcp_option_dhcp_dns_domain_search_list_refer_last_option, tvb, 0, length,
								wmem_strdup_printf(pinfo->pool, "%u/%u", rfc3396_dns_domain_search_list.total_number_of_block, rfc3396_dns_domain_search_list.total_number_of_block));
		}
	}

	if (rfc3396_dns_domain_search_list.tvb_composite == NULL && length) {
		/* We use composite tvb for managing RFC 3396 */
		rfc3396_dns_domain_search_list.tvb_composite = tvb_new_composite();
	}

	/* Concatenate the block before being interpreted for managing RFC 3396 */
	if (length)
		tvb_composite_append(rfc3396_dns_domain_search_list.tvb_composite, tvb_new_subset_length(tvb, 0, length));

	if (rfc3396_dns_domain_search_list.index_current_block == rfc3396_dns_domain_search_list.total_number_of_block
		&& rfc3396_dns_domain_search_list.tvb_composite) {
		/* Here, we are into the last (or unique) option 119. */
		/* We will display the information about fqdn */
		unsigned int consumedx = 0;
		unsigned int composite_offset = 0;
		tvb_composite_finalize(rfc3396_dns_domain_search_list.tvb_composite);

		while (composite_offset < tvb_reported_length(rfc3396_dns_domain_search_list.tvb_composite)) {
			/* use the get_dns_name method that manages all techniques of RFC 1035 (compression pointer and so on) */
			consumedx = get_dns_name(rfc3396_dns_domain_search_list.tvb_composite, composite_offset,
				tvb_reported_length(rfc3396_dns_domain_search_list.tvb_composite), 0, (const gchar **)&dns_name, &dns_name_len);
			name_out = format_text(pinfo->pool, dns_name, dns_name_len);
			if (rfc3396_dns_domain_search_list.total_number_of_block == 1) {
				/* RFC 3396 is not used, so we can easily link the fqdn with v_tree. */
				proto_tree_add_string(tree, hf_dhcp_option_dhcp_dns_domain_search_list_fqdn, tvb, composite_offset, consumedx, name_out);
			} else {
				/* RFC 3396 is used, so the option is split into several option 119. We don't link fqdn with v_tree. */
				proto_tree_add_string(tree, hf_dhcp_option_dhcp_dns_domain_search_list_fqdn, tvb, 0, 0, name_out);
			}
			composite_offset += consumedx;
		}
		rfc3396_dns_domain_search_list.tvb_composite = NULL;
	}

	return tvb_captured_length(tvb);
}

static int
dissect_dhcpopt_sip_servers(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, void* data _U_)
{
	int length = tvb_reported_length(tvb);
	const guchar	*dns_name;
	gint		dns_name_len;
	gchar		*name_out;

	/* Encoding Long Options in the Dynamic Host Configuration Protocol (DHCPv4) (RFC 3396) */
	/* Domain Names - Implementation And Specification (RFC 1035) */
	rfc3396_sip_server.index_current_block++;
	if (rfc3396_sip_server.total_number_of_block > 1) {
		proto_tree_add_string(tree, hf_dhcp_option_sip_server_rfc_3396_detected, tvb, 0, length,
								wmem_strdup_printf(pinfo->pool, "%u/%u", rfc3396_sip_server.index_current_block, rfc3396_sip_server.total_number_of_block));
		if (rfc3396_sip_server.index_current_block != rfc3396_sip_server.total_number_of_block) {
			proto_tree_add_string(tree, hf_dhcp_option_sip_server_refer_last_option, tvb, 0, length,
								wmem_strdup_printf(pinfo->pool, "%u/%u", rfc3396_sip_server.total_number_of_block, rfc3396_sip_server.total_number_of_block));
		}
	}

	if (rfc3396_sip_server.tvb_composite == NULL && length) {
		/* We use composite tvb for managing RFC 3396 */
		rfc3396_sip_server.tvb_composite = tvb_new_composite();
	}

	/* Concatenate the block before being interpreted for managing RFC 3396 */
	if (length)
		tvb_composite_append(rfc3396_sip_server.tvb_composite, tvb_new_subset_length(tvb, 0, length));

	if (rfc3396_sip_server.index_current_block == rfc3396_sip_server.total_number_of_block
		&& rfc3396_sip_server.tvb_composite) {
		/* Here, we are into the last (or unique) option 120. */
		/* We will display the information about SIP server */
		guint8 enc;
		unsigned int composite_offset = 1; /* ignore enc */
		tvb_composite_finalize(rfc3396_sip_server.tvb_composite);

		enc = tvb_get_guint8(rfc3396_sip_server.tvb_composite, 0);
		if (rfc3396_sip_server.total_number_of_block == 1) {
			/* RFC 3396 is not used, so we can easily link the fqdn with tree. */
			proto_tree_add_uint(tree, hf_dhcp_option_sip_server_enc, tvb, 0, 1, enc);
		} else {
			/* RFC 3396 is used, so the option is split into several option 120. We don't link fqdn with tree. */
			proto_tree_add_uint(tree, hf_dhcp_option_sip_server_enc, tvb, 0, 0, enc);
		}

		switch (enc) {
		case RFC_3361_ENC_FQDN: {
			unsigned int consumedx = 0;
			if (tvb_reported_length(rfc3396_sip_server.tvb_composite) < 3) {
				expert_add_info_format(pinfo, tree, &ei_dhcp_bad_length, "length isn't >= 3 (len = %u)", tvb_reported_length(rfc3396_sip_server.tvb_composite));
				break;
			}

			while (composite_offset < tvb_reported_length(rfc3396_sip_server.tvb_composite)) {
				/* use the get_dns_name method that manages all techniques of RFC 1035 (compression pointer and so on) */
				consumedx = get_dns_name(rfc3396_sip_server.tvb_composite, composite_offset, tvb_reported_length(rfc3396_sip_server.tvb_composite),
					1 /* ignore enc */, (const gchar **)&dns_name, &dns_name_len);
				name_out = format_text(pinfo->pool, dns_name, dns_name_len);

				if (rfc3396_sip_server.total_number_of_block == 1) {
					/* RFC 3396 is not used, so we can easily link the fqdn with v_tree. */
					proto_tree_add_string(tree, hf_dhcp_option_sip_server_name, tvb, composite_offset, consumedx, name_out);
				} else {
					/* RFC 3396 is used, so the option is split into several option 120. We don't link fqdn with v_tree. */
					proto_tree_add_string(tree, hf_dhcp_option_sip_server_name, tvb, 0, 0, name_out);
				}
				composite_offset += consumedx;
			}
			rfc3396_sip_server.tvb_composite = NULL;
			break;
		}
		case RFC_3361_ENC_IPADDR:
			if (tvb_reported_length(rfc3396_sip_server.tvb_composite) < 5) {
				expert_add_info_format(pinfo, tree, &ei_dhcp_bad_length, "length isn't >= 5 (len = %u)", tvb_reported_length(rfc3396_sip_server.tvb_composite));
				break;
			}
			/* x % 2^n == x & (2^n - 1) note : (assuming x is a positive integer) */
			if ((tvb_reported_length(rfc3396_sip_server.tvb_composite) - 1) & 3) {
				if (rfc3396_sip_server.total_number_of_block == 1)
					expert_add_info_format(pinfo, tree, &ei_dhcp_bad_length, "length isn't a multiple of 4 plus 1 (len = %u).", tvb_reported_length(rfc3396_sip_server.tvb_composite));
				else
					expert_add_info_format(pinfo, tree, &ei_dhcp_bad_length,
						"length isn't a multiple of 4 plus 1 (len = %u). For your information with RFC 3396, the length is the length sum of all options 120 into this BOOTP packet.",
						tvb_reported_length(rfc3396_sip_server.tvb_composite));
				break;
			}
			while (composite_offset < tvb_reported_length(rfc3396_sip_server.tvb_composite)) {
				if (rfc3396_sip_server.total_number_of_block == 1) {
					/* RFC 3396 is not used, so we can easily link the fqdn with v_tree. */
					proto_tree_add_item(tree, hf_dhcp_option_sip_server_address, tvb, composite_offset, 4, ENC_BIG_ENDIAN);
				} else {
					guint32 sip_server = tvb_get_ipv4(rfc3396_sip_server.tvb_composite, composite_offset);
					/* RFC 3396 is used, so the option is split into several option 120. We don't link fqdn with v_tree. */
					proto_tree_add_ipv4(tree, hf_dhcp_option_sip_server_address, tvb, 0, 0, sip_server);
				}
				composite_offset += 4;
			}
			break;
		default:
			expert_add_info_format(pinfo, tree, &ei_dhcp_option_sip_server_address_encoding, "RFC 3361 defines only 0 and 1 for Encoding byte (Encoding = %u).", enc);
			break;
		}
	}

	return tvb_captured_length(tvb);
}

static int
dissect_dhcpopt_classless_static_route(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, void* data _U_)
{
	int offset = 0;
	int i, mask_width, significant_octets;
	proto_item* route_item;

	/* minimum length is 5 bytes */
	if (tvb_reported_length(tvb) < 5) {
		expert_add_info_format(pinfo, tree, &ei_dhcp_bad_length, "length isn't >= 5");
		return 1;
	}
	while (tvb_reported_length_remaining(tvb, offset) > 0) {
		mask_width = tvb_get_guint8(tvb, offset);
		/* mask_width <= 32 */
		if (mask_width > 32) {
			expert_add_info_format(pinfo, tree, &ei_dhcp_option_classless_static_route, "Mask width (%d) > 32", mask_width);
			break;
		}
		significant_octets = (mask_width + 7) / 8;
		route_item = proto_tree_add_bytes_format(tree, hf_dhcp_option_classless_static_route, tvb, offset,
			1 + significant_octets + 4, NULL, " ");
		offset++;
		/* significant octets + router(4) */
		if (tvb_reported_length_remaining(tvb, offset + significant_octets + 4) < 0) {
			expert_add_info_format(pinfo, route_item, &ei_dhcp_bad_length, "Remaining length (%d) < %d bytes", tvb_reported_length_remaining(tvb, offset), significant_octets + 4);
			break;
		}
		if(mask_width == 0)
			proto_item_append_text(route_item, "default");
		else {
			for(i = 0 ; i < significant_octets ; i++) {
				if (i > 0)
					proto_item_append_text(route_item, ".");
				proto_item_append_text(route_item, "%d", tvb_get_guint8(tvb, offset++));
			}
			for(i = significant_octets ; i < 4 ; i++)
				proto_item_append_text(route_item, ".0");
			proto_item_append_text(route_item, "/%d", mask_width);
		}
		proto_item_append_text(route_item, "-%s", tvb_ip_to_str(pinfo->pool, tvb, offset));
		offset += 4;
	}

	return tvb_captured_length(tvb);
}

static int
dissect_dhcpopt_coordinate_based_location(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, void* data _U_)
{
	int offset = 0, length = tvb_reported_length(tvb);
	proto_item* ti;

	if (length == 16) {
		int ret;
		unsigned char lci[16];
		struct rfc3825_location_fixpoint_t location_fp;
		struct rfc3825_location_decimal_t location;

		tvb_memcpy(tvb, lci, offset, 16);

		/* convert lci encoding into fixpoint location */
		rfc3825_lci_to_fixpoint(lci, &location_fp);

		/* convert location from decimal to fixpoint */
		ret = rfc3825_fixpoint_to_decimal(&location_fp, &location);

		if (ret != RFC3825_NOERROR) {
			ti = proto_tree_add_uint(tree, hf_dhcp_option_rfc3825_error, tvb, offset, 1, ret);
			proto_item_set_len(ti, length);
		} else {
			proto_tree_add_double_format_value(tree, hf_dhcp_option_rfc3825_latitude, tvb, offset, 5, location.latitude, "%15.10f", location.latitude);
			proto_tree_add_double_format_value(tree, hf_dhcp_option_rfc3825_longitude, tvb, offset+5, 5, location.longitude, "%15.10f", location.longitude);
			proto_tree_add_double_format_value(tree, hf_dhcp_option_rfc3825_latitude_res, tvb, offset, 1, location.latitude_res, "%15.10f", location.latitude_res);
			proto_tree_add_double_format_value(tree, hf_dhcp_option_rfc3825_longitude_res, tvb, offset+5, 1, location.longitude_res, "%15.10f", location.longitude_res);
			proto_tree_add_double_format_value(tree, hf_dhcp_option_rfc3825_altitude, tvb, offset+12, 4, location.altitude, "%15.10f", location.altitude);
			proto_tree_add_double_format_value(tree, hf_dhcp_option_rfc3825_altitude_res, tvb, offset+10, 2, location.altitude_res, "%15.10f", location.altitude_res);
			proto_tree_add_uint(tree, hf_dhcp_option_rfc3825_altitude_type, tvb, offset+10, 1, location.altitude_type);
			proto_tree_add_uint(tree, hf_dhcp_option_rfc3825_map_datum, tvb, offset+15, 1, location.datum_type);
		}
	} else if (length < 69) { /* CableLabs DSS_ID */
		int s_len;

		proto_tree_add_item(tree, hf_dhcp_option_cl_dss_id_option, tvb, offset, 1, ENC_BIG_ENDIAN);
		proto_tree_add_item(tree, hf_dhcp_option_cl_dss_id_len, tvb, offset+1, 1, ENC_BIG_ENDIAN);
		s_len = tvb_get_guint8(tvb, offset+1);
		proto_tree_add_item(tree, hf_dhcp_option_cl_dss_id, tvb, offset+2, s_len, ENC_ASCII);

		if (length > s_len+2) { /* Second DSS_ID*/

			proto_tree_add_item(tree, hf_dhcp_option_cl_dss_id_option, tvb, offset+2+s_len, 1, ENC_BIG_ENDIAN);
			proto_tree_add_item(tree, hf_dhcp_option_cl_dss_id_len, tvb, offset+1+2+s_len, 1, ENC_BIG_ENDIAN);
			s_len = tvb_get_guint8(tvb, offset+1+2+s_len);
			proto_tree_add_item(tree, hf_dhcp_option_cl_dss_id, tvb, offset+2+2+s_len, s_len, ENC_ASCII);
		}
	} else {
		expert_add_info_format(pinfo, tree, &ei_dhcp_bad_length, "Invalid length of DHCP option!");
	}

	return tvb_captured_length(tvb);
}

static int
dissect_dhcpopt_vi_vendor_class(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, void* data _U_)
{
	int offset = 0;
	int data_len;
	int s_end;
	proto_item *eti;
	proto_tree *e_tree;
	proto_tree *vcdi_tree;

	if (tvb_reported_length(tvb) == 1) {
		/* CableLab specific */
		proto_tree_add_item(tree, hf_dhcp_option_vi_class_cl_address_mode, tvb, 0, 1, ENC_BIG_ENDIAN);
		return 1;
	}

	while (tvb_reported_length_remaining(tvb, offset)  >= 5) {

		eti = proto_tree_add_item(tree, hf_dhcp_option_vi_class_enterprise, tvb, offset, 4, ENC_BIG_ENDIAN);
		e_tree = proto_item_add_subtree(eti, ett_dhcp_option);
		offset += 4;
		proto_tree_add_item(e_tree, hf_dhcp_option_vi_class_data_length, tvb, offset, 1, ENC_BIG_ENDIAN);
		data_len = tvb_get_guint8(tvb, offset);
		offset += 1;

		s_end = offset + data_len;
		if ( tvb_reported_length_remaining(tvb, s_end) < 0) {
			break;
		}

		while (offset < s_end) {
			vcdi_tree = proto_tree_add_subtree(e_tree, tvb, offset, data_len, ett_dhcp_option124_vendor_class_data_item, NULL, "Vendor Class Data Item");

			data_len = tvb_get_guint8(tvb, offset);
			proto_tree_add_item(vcdi_tree, hf_dhcp_option_vi_class_data_item_length, tvb, offset, 1, ENC_NA);
			offset += 1;
			proto_tree_add_item(vcdi_tree, hf_dhcp_option_vi_class_data_item_data, tvb, offset, data_len, ENC_NA);

			/* look for next vendor-class-data-item */
			offset += data_len;
		}

		/* loop for the next Enterprise number */
	}

	if (tvb_reported_length_remaining(tvb, offset) > 0) {
		expert_add_info_format(pinfo, tree, &ei_dhcp_bad_length, "length < 5");
	}

	return tvb_captured_length(tvb);
}

static int
dissect_dhcpopt_forcerenew_nonce(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree, void* data _U_)
{
	int offset = 0;
	while ( tvb_reported_length_remaining(tvb, offset) > 0) {
		proto_tree_add_item(tree, hf_dhcp_option_forcerenew_nonce_algo, tvb, offset, 1, ENC_BIG_ENDIAN);
		offset += 1;
		}

	return tvb_captured_length(tvb);
}

static int
dissect_dhcpopt_rdnss(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, void* data _U_)
{
	int offset = 0;
	const guchar *dns_name;
	gint dns_name_len;

	if (tvb_reported_length(tvb) < 10) {
		expert_add_info_format(pinfo, tree, &ei_dhcp_bad_length, "length must be >= 10");
		return 1;
	}
	proto_tree_add_item(tree, hf_dhcp_option_rdnss_reserved, tvb, offset, 1, ENC_BIG_ENDIAN);
	proto_tree_add_item(tree, hf_dhcp_option_rdnss_pref, tvb, offset, 1, ENC_BIG_ENDIAN);
	offset += 1;
	proto_tree_add_item(tree, hf_dhcp_option_rdnss_prim_dns_server, tvb, offset, 4, ENC_BIG_ENDIAN);
	offset += 4;
	proto_tree_add_item(tree, hf_dhcp_option_rdnss_sec_dns_server, tvb, offset, 4, ENC_BIG_ENDIAN);
	offset += 4;

	get_dns_name(tvb, offset, tvb_reported_length_remaining(tvb,offset), offset, (const gchar **)&dns_name, &dns_name_len);
	proto_tree_add_string(tree, hf_dhcp_option_rdnss_domain, tvb, offset,
			tvb_reported_length_remaining(tvb,offset), format_text(pinfo->pool, dns_name, dns_name_len));

	return tvb_captured_length(tvb);
}

static int
dissect_dhcpopt_dhcp_captive_portal(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree, void* data _U_)
{
	proto_item *ti_cp;
	ti_cp = proto_tree_add_item(tree, hf_dhcp_option_captive_portal, tvb, 0, tvb_reported_length(tvb), ENC_ASCII);
	proto_item_set_url(ti_cp);

	return tvb_captured_length(tvb);
}

static int
dissect_dhcpopt_bulk_lease_query_start(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, void* data _U_)
{
	if (tvb_reported_length(tvb) != 4) {
		expert_add_info_format(pinfo, tree, &ei_dhcp_bad_length, "length must be 4");
		return 1;
	}
	proto_tree_add_item(tree, hf_dhcp_option_bulk_lease_query_start, tvb, 0, 4, ENC_TIME_SECS_NTP|ENC_BIG_ENDIAN);

	return tvb_captured_length(tvb);
}

static int
dissect_dhcpopt_bulk_lease_query_end(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree, void* data _U_)
{
	if (tvb_reported_length(tvb) != 4) {
		expert_add_info_format(pinfo, tree, &ei_dhcp_bad_length, "length must be 4");
		return 1;
	}
	proto_tree_add_item(tree, hf_dhcp_option_bulk_lease_query_end, tvb, 0, 4, ENC_TIME_SECS_NTP|ENC_BIG_ENDIAN);

	return tvb_captured_length(tvb);
}

static int
dissect_dhcpopt_bulk_lease_base_time(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, void* data _U_)
{
	if (tvb_reported_length(tvb) != 4) {
		expert_add_info_format(pinfo, tree, &ei_dhcp_bad_length, "length must be 4");
		return 1;
	}
	proto_tree_add_item(tree, hf_dhcp_option_bulk_lease_base_time, tvb, 0, 4, ENC_TIME_SECS_NTP|ENC_BIG_ENDIAN);

	return tvb_captured_length(tvb);
}

static int
dissect_dhcpopt_bulk_lease_status_code(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, void* data _U_)
{
	if (tvb_reported_length(tvb) < 1) {
		expert_add_info_format(pinfo, tree, &ei_dhcp_bad_length, "length must >= 1");
		return 1;
	}
	proto_tree_add_item(tree, hf_dhcp_option_bulk_lease_status_code, tvb, 0, 1, ENC_BIG_ENDIAN);
	if ( tvb_reported_length_remaining(tvb, 1) > 0) {
		proto_tree_add_item(tree, hf_dhcp_option_bulk_lease_status_message, tvb, 1, tvb_reported_length_remaining(tvb, 1), ENC_UTF_8);
		}

	return tvb_captured_length(tvb);
}

static int
dissect_dhcpopt_pcp_server(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, void* data _U_)
{
	proto_tree *tree_pcp;
	int offset = 0;
	guint8 list_length;
	guint8 ip_list_length;
	proto_item *ti_pcp;

	if (tvb_reported_length(tvb) < 5) {
		expert_add_info_format(pinfo, tree, &ei_dhcp_bad_length, "length must >= 5");
		return 1;
	}
	while (tvb_reported_length_remaining(tvb, offset) >= 5) {
		ip_list_length = 0;
		list_length = tvb_get_guint8(tvb, offset);
		tree_pcp = proto_tree_add_subtree(tree, tvb, offset, list_length, ett_dhcp_option158_pcp_list,
						&ti_pcp, "PCP server list");
		proto_tree_add_item(tree_pcp, hf_dhcp_option_pcp_list_length, tvb, offset, 1, ENC_NA);
		offset += 1;
		ip_list_length += 1;
		while (((list_length - 1)%4 == 0) && (ip_list_length < list_length) && tvb_reported_length_remaining(tvb,offset) >= 4) {
			proto_tree_add_item(tree_pcp, hf_dhcp_option_pcp_server, tvb, offset, 4, ENC_NA);
			offset += 4;
			ip_list_length += 4;
		}
	}

	return tvb_captured_length(tvb);
}

static int
dissect_dhcpopt_portparams(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, void* data _U_)
{
	if (tvb_reported_length(tvb) != 4) {
		expert_add_info_format(pinfo, tree, &ei_dhcp_bad_length, "length must be 4");
		return 1;
	}
	proto_tree_add_item(tree, hf_dhcp_option_portparams_offset, tvb, 0, 1, ENC_NA);
	proto_tree_add_item(tree, hf_dhcp_option_portparams_psid_length, tvb, 1, 1, ENC_NA);
	proto_tree_add_item(tree, hf_dhcp_option_portparams_psid, tvb, 2, 2, ENC_NA);

	return tvb_captured_length(tvb);
}

static int
dissect_dhcpopt_6RD_option(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, void* data _U_)
{
	int offset = 0;

	if (tvb_reported_length(tvb) < 22) {
		expert_add_info(pinfo, tree, &ei_dhcp_option_6RD_malformed);
		return 1;
	}

	proto_tree_add_item(tree, hf_dhcp_option_6RD_ipv4_mask_len, tvb, offset, 1, ENC_BIG_ENDIAN);
	proto_tree_add_item(tree, hf_dhcp_option_6RD_prefix_len, tvb, offset+1, 1, ENC_BIG_ENDIAN);
	proto_tree_add_item(tree, hf_dhcp_option_6RD_prefix, tvb, offset+2, 16, ENC_NA);
	proto_tree_add_item(tree, hf_dhcp_option_6RD_border_relay_ip, tvb, offset+18, 4, ENC_BIG_ENDIAN);

	/* More Border Relay IPv4 addresses included */
	if (tvb_reported_length(tvb) > 22) {
		offset += 22;
		while (tvb_reported_length_remaining(tvb, offset) >= 4) {
			proto_tree_add_item(tree, hf_dhcp_option_6RD_border_relay_ip, tvb, offset, 4, ENC_BIG_ENDIAN);
			offset += 4;
		}
		if (tvb_reported_length_remaining(tvb, offset) > 0) {
			expert_add_info_format(pinfo, tree, &ei_dhcp_bad_length, "Option length isn't a multiple of 4");
		}
	}

	return tvb_captured_length(tvb);
}

static int
dissect_dhcpopt_avaya_ip_telephone(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, void* data _U_)
{
	int offset = 0;
	proto_tree *o242avaya_v_tree;
	proto_item *avaya_ti;
	const gchar *avaya_option = NULL;
	wmem_strbuf_t *avaya_param_buf = NULL;

	/* minimum length is 5 bytes */
	if (tvb_reported_length(tvb) < 5) {
		expert_add_info_format(pinfo, tree, &ei_dhcp_bad_length, "Avaya IP Telephone option length isn't >= 5");
		return 1;
	}
	avaya_ti = proto_tree_add_item_ret_string(tree, hf_dhcp_option242_avaya, tvb, offset, tvb_reported_length(tvb), ENC_ASCII|ENC_NA, pinfo->pool, (const guint8 **)&avaya_option);
	o242avaya_v_tree = proto_item_add_subtree(avaya_ti, ett_dhcp_option242_suboption);
	avaya_param_buf = wmem_strbuf_new(pinfo->pool, "");
	gchar **fields = wmem_strsplit(pinfo->pool, avaya_option, ",", -1);
	for (int i = 0; fields[i]; i++) {
		const gchar *field = fields[i];
		if (!strchr(field, '=')) {
			if (wmem_strbuf_get_len(avaya_param_buf) == 0) {
				expert_add_info_format(pinfo, avaya_ti, &hf_dhcp_subopt_unknown_type, "ERROR, Unknown parameter %s", field);
				offset += (int)strlen(field);
				break;
			}
			wmem_strbuf_append_printf(avaya_param_buf,",%s", field);
		}
		else {
			if (wmem_strbuf_get_len(avaya_param_buf) > 0) {
				dissect_vendor_avaya_param(o242avaya_v_tree, pinfo, avaya_ti, tvb, offset, avaya_param_buf);
				offset += (int)wmem_strbuf_get_len(avaya_param_buf) + 1;
				wmem_strbuf_truncate(avaya_param_buf, 0);
			}
			wmem_strbuf_append(avaya_param_buf, field);
		}
	}
	if (wmem_strbuf_get_len(avaya_param_buf) > 0) {
		dissect_vendor_avaya_param(o242avaya_v_tree, pinfo, avaya_ti, tvb, offset, avaya_param_buf);
	}

	return tvb_captured_length(tvb);
}

static const value_string option82_suboption_vals[] = {
	{  0, "Padding" },
	{  1, "Agent Circuit ID" },
	{  2, "Agent Remote ID" },
	{  3, "Reserved" },
	{  4, "DOCSIS Device Class" },
	{  5, "Link selection" },
	{  6, "Subscriber ID" },
	{  7, "RADIUS Attributes" },
	{  8, "Authentication" },
	{  9, "Vendor-Specific Information" },
	{ 10, "Flags" },
	{ 11, "Server ID Override" },
	{ 12, "Relay Agent Identifier" },
	{ 13, "Access Technology Type" },
	{ 14, "Access Network Name" },
	{ 15, "Access Point Name" },
	{ 16, "Access Point BSSID" },
	{ 17, "Access Network Operator ID" },
	{ 18, "Access Network Operator Realm" },
	{ 19, "Source Port" },
	{ 150, "Link selection (Cisco proprietary)" },
	{ 151, "VRF name/VPN ID" },
	{ 152, "Server ID Override (Cisco proprietary)" },
	{ 0, NULL }
};

#define CL_AI_OPTION_DOCSIS_VERSION			1	/* 82:9:4491:1 */
#define CL_AI_OPTION_DPOE_SYSTEM_VERSION		2	/* 82:9:4491:2 */
#define CL_AI_OPTION_DPOE_SYSTEM_DHCPV4_PBB_SERVICE	4	/* 82:9:4491:4 */
#define CL_AI_OPTION_CMTS_CM_SERVICE_CLASS		5	/* 82:9:4491:5 */
#define CL_AI_OPTION_CMTS_MSO_DEFINED_TEXT		6	/* 82:9:4491:6 */
#define	CL_AI_OPTION_SECURE_FILE_TRANSFER_URI		7	/* 82:9:4491:7 */

static int
dhcp_dhcp_decode_agent_info(packet_info *pinfo, proto_item *v_ti, proto_tree *v_tree, tvbuff_t *tvb, int optoff,
			     int optend)
{
	int	    suboptoff = optoff;
	guint8	    subopt, idx, vs_opt, vs_len;
	int	    subopt_len, subopt_end, datalen;
	guint32	    enterprise;
	proto_item *vti, *ti;
	proto_tree *o82_v_tree, *o82_sub_tree;
	int 	clsuboptoff, clsubopt_end;

	struct basic_types_hfs default_hfs = {
		&hf_dhcp_option82_value,
		&hf_dhcp_option82_value_ip_address,
		&hf_dhcp_option82_value_ip_address,
		&hf_dhcp_option82_value_stringz,
		NULL,
		&hf_dhcp_option82_value_8,
		&hf_dhcp_option82_value_16,
		NULL,
		&hf_dhcp_option82_value_32,
		NULL,
		NULL
	};

	struct opt82_info {
		int id;
		struct opt_info info;
	};
	static struct opt82_info o82_opt[]= {
		{0, {"nop", bytes, &hf_dhcp_option82_padding}},	/* dummy */
		{1, {"Agent Circuit ID", bytes, &hf_dhcp_option82_agent_circuit_id}}, /* [RFC3046] */
		{2, {"Agent Remote ID", bytes, &hf_dhcp_option82_agent_remote_id}}, /* [RFC3046] */
		{3, {"Reserved", bytes, &hf_dhcp_option82_reserved}},
		{4, {"DOCSIS Device Class", val_u_long, &hf_dhcp_option82_docsis_device_class}}, /* [RFC3256] */
		{5, {"Link selection", ipv4, &hf_dhcp_option82_link_selection}}, /* [RFC3527] */
		{6, {"Subscriber ID", string, &hf_dhcp_option82_subscriber_id}},  /* [RFC3993] */ /***** CHECK STRING TYPE */
		{7, {"RADIUS Attributes", bytes, &hf_dhcp_option82_radius_attributes}}, /* [RFC4014] */
		{8, {"Authentication", bytes, &hf_dhcp_option82_authentication}}, /* [RFC4030] */
		{9, {"Vendor-Specific Information", special, &hf_dhcp_option82_vi}}, /* [RFC 4243] */
		{10, {"Flags", val_u_byte, &hf_dhcp_option82_flags}}, /* [RFC5010] */
		{11, {"Server ID Override", ipv4, &hf_dhcp_option82_server_id_override}}, /* [RFC 5107] */
		{12, {"Relay Agent Identifier", bytes, &hf_dhcp_option82_relay_agent_id}}, /* [RFC 6925] */
		{13, {"Access Technology Type", bytes, &hf_dhcp_option82_option_ani_att}}, /* [RFC7839] */
		{14, {"Access Network Name", string, &hf_dhcp_option82_option_ani_network_name}}, /* [RFC7839] */
		{15, {"Access Point Name", string, &hf_dhcp_option82_option_ani_ap_name}}, /* [RFC7839] */
		{16, {"Access Point BSSID", special, &hf_dhcp_option82_option_ani_ap_bssid}}, /* [RFC7839] */
		{17, {"Access Network Operator ID", bytes, &hf_dhcp_option82_option_ani_operator_id}}, /* [RFC7839] */
		{18, {"Access Network Operator Realm", string, &hf_dhcp_option82_option_ani_operator_realm}}, /* [RFC7839] */
		{19, {"Source Port", val_u_short, &hf_dhcp_option82_option_source_port}}, /* [RFC8357] */
		{150, {"Link selection (Cisco proprietary)", ipv4, &hf_dhcp_option82_link_selection_cisco}}, /* [RFC3527] */
		{151, {"VRF name/VPN ID", special, &hf_dhcp_option82_vrf_name_vpn_id}}, /* [RFC2685] */
		{152, {"Server ID Override (Cisco proprietary)", ipv4, &hf_dhcp_option82_server_id_override_cisco}} /* [RFC 5107] */
	};

	subopt = tvb_get_guint8(tvb, optoff);
	suboptoff++;

	if (suboptoff >= optend) {
		expert_add_info_format(pinfo, v_ti, &ei_dhcp_missing_subopt_length,
									"Suboption %d: no room left in option for suboption length", subopt);
		return (optend);
	}

	subopt_len = tvb_get_guint8(tvb, suboptoff);
	vti = proto_tree_add_uint_format_value(v_tree, hf_dhcp_option82_suboption,
		tvb, optoff, subopt_len+2, subopt, "(%d) %s", subopt, val_to_str_const(subopt, option82_suboption_vals, "Unknown"));

	o82_v_tree = proto_item_add_subtree(vti, ett_dhcp_option82_suboption);
	proto_tree_add_item(o82_v_tree, hf_dhcp_suboption_length, tvb, suboptoff, 1, ENC_BIG_ENDIAN);
	suboptoff++;

	subopt_end = suboptoff+subopt_len;
	if (subopt_end > optend) {
		expert_add_info_format(pinfo, vti, &ei_dhcp_missing_subopt_value,
						"Suboption %d: no room left in option for suboption value", subopt);
		return (optend);
	}

	for (idx = 0; idx < array_length(o82_opt); idx++) {
		if (o82_opt[idx].id == subopt) {
			break;
		}
	}

	ti = proto_tree_add_item(o82_v_tree, hf_dhcp_option82_value, tvb, suboptoff, subopt_len, ENC_NA);

	if ( (idx >= 1 ) && (idx < array_length(o82_opt)) ) {
		proto_item_set_hidden(ti);
		if (o82_opt[idx].info.ftype == special) {
			switch(subopt)
			{
			case 9:
				while (suboptoff < subopt_end) {
					enterprise = tvb_get_ntohl(tvb, suboptoff);
					vti = proto_tree_add_item(o82_v_tree, hf_dhcp_option82_vi_enterprise, tvb, suboptoff, 4, ENC_BIG_ENDIAN);
					suboptoff += 4;

					o82_sub_tree = proto_item_add_subtree(vti, ett_dhcp_option82_suboption9);
					datalen = tvb_get_guint8(tvb, suboptoff);
					proto_tree_add_item(o82_sub_tree, hf_dhcp_option82_vi_data_length, tvb, suboptoff, 1, ENC_BIG_ENDIAN);
					suboptoff++;

					switch (enterprise) {
					case VENDOR_CABLELABS: /* CableLab */
						clsuboptoff = suboptoff;
						clsubopt_end = clsuboptoff + datalen;
						while (clsuboptoff < clsubopt_end) {
							vs_opt = tvb_get_guint8(tvb, clsuboptoff);
							vs_len = tvb_get_guint8(tvb, clsuboptoff+1);
							clsuboptoff += 2;
							switch (vs_opt) {
							case CL_AI_OPTION_DOCSIS_VERSION:
								proto_tree_add_uint_format_value(o82_sub_tree, hf_dhcp_option82_vi_cl_docsis_version,
										  tvb, clsuboptoff, 2, 0, "%d.%d",
										  tvb_get_guint8(tvb, clsuboptoff), tvb_get_guint8(tvb, clsuboptoff+1));
								clsuboptoff+=2;
								break;
							case CL_AI_OPTION_DPOE_SYSTEM_VERSION:
								proto_tree_add_uint_format_value(o82_sub_tree, hf_dhcp_option82_vi_cl_dpoe_system_version,
										  tvb, clsuboptoff, 2, 0, "%d.%d",
										  tvb_get_guint8(tvb, clsuboptoff), tvb_get_guint8(tvb, clsuboptoff+1));
								clsuboptoff+=2;
								break;
							case CL_AI_OPTION_DPOE_SYSTEM_DHCPV4_PBB_SERVICE:
								proto_tree_add_item(o82_sub_tree, hf_dhcp_option82_vi_cl_dpoe_system_pbb_service, tvb, clsuboptoff, vs_len, ENC_NA);
								break;
							case CL_AI_OPTION_CMTS_CM_SERVICE_CLASS:
								proto_tree_add_item(o82_sub_tree, hf_dhcp_option82_vi_cl_service_class_name, tvb, clsuboptoff, vs_len, ENC_ASCII);
								clsuboptoff += vs_len;
								break;
							case CL_AI_OPTION_CMTS_MSO_DEFINED_TEXT:
								proto_tree_add_item(o82_sub_tree, hf_dhcp_option82_vi_cl_mso_defined_text, tvb, clsuboptoff, vs_len, ENC_ASCII);
								clsuboptoff += vs_len;
								break;
							case CL_AI_OPTION_SECURE_FILE_TRANSFER_URI:
								proto_tree_add_item(o82_sub_tree, hf_dhcp_option82_vi_cl_secure_file_transfer_uri, tvb, clsuboptoff, vs_len, ENC_ASCII);
								clsuboptoff += vs_len;
								break;
							default:
								expert_add_info_format(pinfo, vti, &ei_dhcp_option82_vi_cl_tag_unknown, "Unknown tag %d (%d bytes)", vs_opt, vs_len);
								clsuboptoff += vs_len;
								break;
							}
						}
						suboptoff = clsuboptoff;
						break;
					default:
						proto_tree_add_item(o82_v_tree, hf_dhcp_option82_value, tvb, suboptoff, datalen, ENC_NA);
						suboptoff += datalen;
						break;
					}
				}
				break;
			case 13: /* Access Technology Type */
				if (subopt_len != 2) {
					expert_add_info_format(pinfo, vti, &ei_dhcp_bad_length, "length isn't 2");
					break;
				}
				proto_tree_add_item(o82_v_tree, hf_dhcp_option82_option_ani_att_res, tvb, suboptoff, 1, ENC_NA);
				proto_tree_add_item(o82_v_tree, hf_dhcp_option82_option_ani_att_att, tvb, suboptoff+1, 1, ENC_NA);
				break;
			break;
			case 151:
				if (subopt_len == 1) {
					proto_tree_add_item(o82_v_tree, hf_dhcp_option82_vrf_name_global, tvb, suboptoff, 1, ENC_NA);
				}
				else if (subopt_len != 7) {
					proto_tree_add_item(o82_v_tree, hf_dhcp_option82_vrf_name, tvb, suboptoff, subopt_len, ENC_ASCII);
				} else {
					proto_tree_add_item(o82_v_tree, hf_dhcp_option82_vrf_name_vpn_id_oui, tvb, suboptoff, 3, ENC_BIG_ENDIAN);
					proto_tree_add_item(o82_v_tree, hf_dhcp_option82_vrf_name_vpn_id_index, tvb, suboptoff+3, 4, ENC_BIG_ENDIAN);
				}
				break;
			default:
				if (o82_opt[idx].info.phf != NULL)
					proto_tree_add_item(o82_v_tree, *o82_opt[idx].info.phf, tvb, suboptoff, subopt_len, ENC_BIG_ENDIAN);
				else
					proto_tree_add_item(o82_v_tree, hf_dhcp_option82_value, tvb, suboptoff, subopt_len, ENC_NA);
				break;
			}
		}
		else {
			dhcp_handle_basic_types(pinfo, o82_v_tree, vti, tvb, o82_opt[idx].info.ftype,
						     suboptoff, subopt_len, o82_opt[idx].info.phf, &default_hfs);
		}
	}

	optoff += (subopt_len + 2);
	return optoff;
}

static int
dissect_dhcpopt_relay_agent_info(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, void* data _U_)
{
	int offset = 0;

	while (tvb_reported_length_remaining(tvb, offset) > 0) {
		offset = dhcp_dhcp_decode_agent_info(pinfo, tree, tree, tvb, offset, tvb_reported_length(tvb));
	}

	return tvb_captured_length(tvb);
}

# define O43PXE_DISCOVERY 6
# define O43PXE_BOOT_SERVER 8
# define O43PXE_BOOT_MENU 9
# define O43PXE_MENU_PROMPT 10
# define O43PXE_BOOT_ITEM 71

static const value_string option43_pxeclient_suboption_vals[] = {
	{  0, "Padding" },
	{  1, "PXE mtftp IP" },
	{  2, "PXE mtftp client port" },
	{  3, "PXE mtftp server port" },
	{  4, "PXE mtftp timeout" },
	{  5, "PXE mtftp delay" },
	{ O43PXE_DISCOVERY, "PXE discovery control" },
	{  7, "PXE multicast address" },
	{ O43PXE_BOOT_SERVER, "PXE boot servers" },
	{ O43PXE_BOOT_MENU, "PXE boot menu" },
	{ O43PXE_MENU_PROMPT, "PXE menu prompt" },
	{ 11, "PXE multicast address alloc", },
	{ 12, "PXE credential types" },
	{ O43PXE_BOOT_ITEM, "PXE boot item" },
	{ 179, "PXE LCM Server" },
	{ 180, "PXE LCM Domain" },
	{ 181, "PXE LCM NIC option 0" },
	{ 190, "PXE LCM Workgroup" },
	{ 191, "PXE Discovery" },
	{ 192, "PXE Configured" },
	{ 193, "PXE LCM version" },
	{ 194, "PXE LCM Serial Number" },
	{ 255, "PXE End" },
	{ 0, NULL}
};

static int
dissect_vendor_pxeclient_suboption(packet_info *pinfo, proto_item *v_ti, proto_tree *v_tree,
				   tvbuff_t *tvb, int optoff, int optend)
{
	int	    suboptoff = optoff;
	int	    suboptoff_start;
	guint8	    subopt;
	guint8	    subopt_len;
	proto_tree *o43pxeclient_v_tree, *o43pxeclient_suboption_tree;
	proto_item *vti, *ti;
	guint32	    boot_server_ip_count;
	guint32	    boot_menu_length;

	struct basic_types_hfs default_hfs = {
		NULL,
		&hf_dhcp_option43_value_ip_address,
		&hf_dhcp_option43_value_ip_address,
		NULL,
		NULL,
		&hf_dhcp_option43_value_8,
		NULL,
		NULL,
		NULL,
		NULL,
		NULL
	};

	static int * const o43pxe_discovery_hf_flags[] = {
		&hf_dhcp_option43_pxeclient_discovery_control_bc,
		&hf_dhcp_option43_pxeclient_discovery_control_mc,
		&hf_dhcp_option43_pxeclient_discovery_control_serverlist,
		&hf_dhcp_option43_pxeclient_discovery_control_bstrap,
		NULL
	};

	static struct opt_info o43pxeclient_opt[]= {
		/* 0 */ {"nop", special, &hf_dhcp_option43_pxeclient_padding},	/* dummy */
		/* 1 */ {"PXE mtftp IP", ipv4_list, &hf_dhcp_option43_pxeclient_mtftp_ip},
		/* 2 */ {"PXE mtftp client port", val_u_le_short, &hf_dhcp_option43_pxeclient_mtftp_client_port},
		/* 3 */ {"PXE mtftp server port",val_u_le_short, &hf_dhcp_option43_pxeclient_mtftp_server_port},
		/* 4 */ {"PXE mtftp timeout", val_u_byte, &hf_dhcp_option43_pxeclient_mtftp_timeout},
		/* 5 */ {"PXE mtftp delay", val_u_byte, &hf_dhcp_option43_pxeclient_mtftp_delay},
		/* 6 */ {"PXE discovery control", special, NULL},
		/* 7 */ {"PXE multicast address", ipv4_list, &hf_dhcp_option43_pxeclient_multicast_address},
		/* 8 */ {"PXE boot servers", special, NULL},
		/* 9 */ {"PXE boot menu", special, NULL},
		/* 10 */ {"PXE menu prompt", special, NULL},
		/* 11 */ {"PXE multicast address alloc", special, &hf_dhcp_option43_pxeclient_multicast_address_alloc},
		/* 12 */ {"PXE credential types", special, &hf_dhcp_option43_pxeclient_credential_types},
		/* 13 */ {"Unassigned", opaque, NULL},
		/* 14 */ {"Unassigned", opaque, NULL},
		/* 15 */ {"Unassigned", opaque, NULL},
		/* 16 */ {"Unassigned", opaque, NULL},
		/* 17 */ {"Unassigned", opaque, NULL},
		/* 18 */ {"Unassigned", opaque, NULL},
		/* 19 */ {"Unassigned", opaque, NULL},
		/* 20 */ {"Unassigned", opaque, NULL},
		/* 21 */ {"Unassigned", opaque, NULL},
		/* 22 */ {"Unassigned", opaque, NULL},
		/* 23 */ {"Unassigned", opaque, NULL},
		/* 24 */ {"Unassigned", opaque, NULL},
		/* 25 */ {"Unassigned", opaque, NULL},
		/* 26 */ {"Unassigned", opaque, NULL},
		/* 27 */ {"Unassigned", opaque, NULL},
		/* 28 */ {"Unassigned", opaque, NULL},
		/* 29 */ {"Unassigned", opaque, NULL},
		/* 30 */ {"Unassigned", opaque, NULL},
		/* 31 */ {"Unassigned", opaque, NULL},
		/* 32 */ {"Unassigned", opaque, NULL},
		/* 33 */ {"Unassigned", opaque, NULL},
		/* 34 */ {"Unassigned", opaque, NULL},
		/* 35 */ {"Unassigned", opaque, NULL},
		/* 36 */ {"Unassigned", opaque, NULL},
		/* 37 */ {"Unassigned", opaque, NULL},
		/* 38 */ {"Unassigned", opaque, NULL},
		/* 39 */ {"Unassigned", opaque, NULL},
		/* 40 */ {"Unassigned", opaque, NULL},
		/* 41 */ {"Unassigned", opaque, NULL},
		/* 42 */ {"Unassigned", opaque, NULL},
		/* 43 */ {"Unassigned", opaque, NULL},
		/* 44 */ {"Unassigned", opaque, NULL},
		/* 45 */ {"Unassigned", opaque, NULL},
		/* 46 */ {"Unassigned", opaque, NULL},
		/* 47 */ {"Unassigned", opaque, NULL},
		/* 48 */ {"Unassigned", opaque, NULL},
		/* 49 */ {"Unassigned", opaque, NULL},
		/* 50 */ {"Unassigned", opaque, NULL},
		/* 51 */ {"Unassigned", opaque, NULL},
		/* 52 */ {"Unassigned", opaque, NULL},
		/* 53 */ {"Unassigned", opaque, NULL},
		/* 54 */ {"Unassigned", opaque, NULL},
		/* 55 */ {"Unassigned", opaque, NULL},
		/* 56 */ {"Unassigned", opaque, NULL},
		/* 57 */ {"Unassigned", opaque, NULL},
		/* 58 */ {"Unassigned", opaque, NULL},
		/* 59 */ {"Unassigned", opaque, NULL},
		/* 60 */ {"Unassigned", opaque, NULL},
		/* 61 */ {"Unassigned", opaque, NULL},
		/* 62 */ {"Unassigned", opaque, NULL},
		/* 63 */ {"Unassigned", opaque, NULL},
		/* 64 */ {"Unassigned", opaque, NULL},
		/* 65 */ {"Unassigned", opaque, NULL},
		/* 66 */ {"Unassigned", opaque, NULL},
		/* 67 */ {"Unassigned", opaque, NULL},
		/* 68 */ {"Unassigned", opaque, NULL},
		/* 69 */ {"Unassigned", opaque, NULL},
		/* 70 */ {"Unassigned", opaque, NULL},
		/* 71 */ {"PXE boot item", special, NULL},
		/* 72 */ {"Unassigned", opaque, NULL},
		/* 73 */ {"Unassigned", opaque, NULL},
		/* 74 */ {"Unassigned", opaque, NULL},
		/* 75 */ {"Unassigned", opaque, NULL},
		/* 76 */ {"Unassigned", opaque, NULL},
		/* 77 */ {"Unassigned", opaque, NULL},
		/* 78 */ {"Unassigned", opaque, NULL},
		/* 79 */ {"Unassigned", opaque, NULL},
		/* 80 */ {"Unassigned", opaque, NULL},
		/* 81 */ {"Unassigned", opaque, NULL},
		/* 82 */ {"Unassigned", opaque, NULL},
		/* 83 */ {"Unassigned", opaque, NULL},
		/* 84 */ {"Unassigned", opaque, NULL},
		/* 85 */ {"Unassigned", opaque, NULL},
		/* 86 */ {"Unassigned", opaque, NULL},
		/* 87 */ {"Unassigned", opaque, NULL},
		/* 88 */ {"Unassigned", opaque, NULL},
		/* 89 */ {"Unassigned", opaque, NULL},
		/* 90 */ {"Unassigned", opaque, NULL},
		/* 91 */ {"Unassigned", opaque, NULL},
		/* 92 */ {"Unassigned", opaque, NULL},
		/* 93 */ {"Unassigned", opaque, NULL},
		/* 94 */ {"Unassigned", opaque, NULL},
		/* 95 */ {"Unassigned", opaque, NULL},
		/* 96 */ {"Unassigned", opaque, NULL},
		/* 97 */ {"Unassigned", opaque, NULL},
		/* 98 */ {"Unassigned", opaque, NULL},
		/* 99 */ {"Unassigned", opaque, NULL},
		/* 100 */ {"Unassigned", opaque, NULL},
		/* 101 */ {"Unassigned", opaque, NULL},
		/* 102 */ {"Unassigned", opaque, NULL},
		/* 103 */ {"Unassigned", opaque, NULL},
		/* 104 */ {"Unassigned", opaque, NULL},
		/* 105 */ {"Unassigned", opaque, NULL},
		/* 106 */ {"Unassigned", opaque, NULL},
		/* 107 */ {"Unassigned", opaque, NULL},
		/* 108 */ {"Unassigned", opaque, NULL},
		/* 109 */ {"Unassigned", opaque, NULL},
		/* 110 */ {"Unassigned", opaque, NULL},
		/* 111 */ {"Unassigned", opaque, NULL},
		/* 112 */ {"Unassigned", opaque, NULL},
		/* 113 */ {"Unassigned", opaque, NULL},
		/* 114 */ {"Unassigned", opaque, NULL},
		/* 115 */ {"Unassigned", opaque, NULL},
		/* 116 */ {"Unassigned", opaque, NULL},
		/* 117 */ {"Unassigned", opaque, NULL},
		/* 118 */ {"Unassigned", opaque, NULL},
		/* 119 */ {"Unassigned", opaque, NULL},
		/* 120 */ {"Unassigned", opaque, NULL},
		/* 121 */ {"Unassigned", opaque, NULL},
		/* 122 */ {"Unassigned", opaque, NULL},
		/* 123 */ {"Unassigned", opaque, NULL},
		/* 124 */ {"Unassigned", opaque, NULL},
		/* 125 */ {"Unassigned", opaque, NULL},
		/* 126 */ {"Unassigned", opaque, NULL},
		/* 127 */ {"Unassigned", opaque, NULL},
		/* 128 */ {"Unassigned", opaque, NULL},
		/* 129 */ {"Unassigned", opaque, NULL},
		/* 130 */ {"Unassigned", opaque, NULL},
		/* 131 */ {"Unassigned", opaque, NULL},
		/* 132 */ {"Unassigned", opaque, NULL},
		/* 133 */ {"Unassigned", opaque, NULL},
		/* 134 */ {"Unassigned", opaque, NULL},
		/* 135 */ {"Unassigned", opaque, NULL},
		/* 136 */ {"Unassigned", opaque, NULL},
		/* 137 */ {"Unassigned", opaque, NULL},
		/* 138 */ {"Unassigned", opaque, NULL},
		/* 139 */ {"Unassigned", opaque, NULL},
		/* 140 */ {"Unassigned", opaque, NULL},
		/* 141 */ {"Unassigned", opaque, NULL},
		/* 142 */ {"Unassigned", opaque, NULL},
		/* 143 */ {"Unassigned", opaque, NULL},
		/* 144 */ {"Unassigned", opaque, NULL},
		/* 145 */ {"Unassigned", opaque, NULL},
		/* 146 */ {"Unassigned", opaque, NULL},
		/* 147 */ {"Unassigned", opaque, NULL},
		/* 148 */ {"Unassigned", opaque, NULL},
		/* 149 */ {"Unassigned", opaque, NULL},
		/* 150 */ {"Unassigned", opaque, NULL},
		/* 151 */ {"Unassigned", opaque, NULL},
		/* 152 */ {"Unassigned", opaque, NULL},
		/* 153 */ {"Unassigned", opaque, NULL},
		/* 154 */ {"Unassigned", opaque, NULL},
		/* 155 */ {"Unassigned", opaque, NULL},
		/* 156 */ {"Unassigned", opaque, NULL},
		/* 157 */ {"Unassigned", opaque, NULL},
		/* 158 */ {"Unassigned", opaque, NULL},
		/* 159 */ {"Unassigned", opaque, NULL},
		/* 160 */ {"Unassigned", opaque, NULL},
		/* 161 */ {"Unassigned", opaque, NULL},
		/* 162 */ {"Unassigned", opaque, NULL},
		/* 163 */ {"Unassigned", opaque, NULL},
		/* 164 */ {"Unassigned", opaque, NULL},
		/* 165 */ {"Unassigned", opaque, NULL},
		/* 166 */ {"Unassigned", opaque, NULL},
		/* 167 */ {"Unassigned", opaque, NULL},
		/* 168 */ {"Unassigned", opaque, NULL},
		/* 169 */ {"Unassigned", opaque, NULL},
		/* 170 */ {"Unassigned", opaque, NULL},
		/* 171 */ {"Unassigned", opaque, NULL},
		/* 172 */ {"Unassigned", opaque, NULL},
		/* 173 */ {"Unassigned", opaque, NULL},
		/* 174 */ {"Unassigned", opaque, NULL},
		/* 175 */ {"Unassigned", opaque, NULL},
		/* 176 */ {"Unassigned", opaque, NULL},
		/* 177 */ {"Unassigned", opaque, NULL},
		/* 178 */ {"Unassigned", opaque, NULL},
		/* 179 */ {"LCM Server", string, &hf_dhcp_option43_pxeclient_lcm_server},
		/* 180 */ {"LCM Domain", string, &hf_dhcp_option43_pxeclient_lcm_domain},
		/* 181 */ {"LCM NIC Option 0", bytes, &hf_dhcp_option43_pxeclient_lcm_nic_option},
		/* 182 */ {"Unassigned", opaque, NULL},
		/* 183 */ {"Unassigned", opaque, NULL},
		/* 184 */ {"Unassigned", opaque, NULL},
		/* 185 */ {"Unassigned", opaque, NULL},
		/* 186 */ {"Unassigned", opaque, NULL},
		/* 187 */ {"Unassigned", opaque, NULL},
		/* 188 */ {"Unassigned", opaque, NULL},
		/* 189 */ {"Unassigned", opaque, NULL},
		/* 190 */ {"LCM Workgroup", string, &hf_dhcp_option43_pxeclient_lcm_workgroup},
		/* 191 */ {"Discovery", val_boolean, &hf_dhcp_option43_pxeclient_discovery},
		/* 192 */ {"Configured", val_boolean, &hf_dhcp_option43_pxeclient_configured},
		/* 193 */ {"LCM Version", val_u_long, &hf_dhcp_option43_pxeclient_lcm_version},
		/* 194 */ {"LCM Serial Number", string, &hf_dhcp_option43_pxeclient_lcm_serial},
		/* 255 {"PXE end options", special, &hf_dhcp_option43_pxeclient_end} */
	};

	subopt = tvb_get_guint8(tvb, optoff);
	suboptoff++;

	if (subopt == 0) {
		proto_tree_add_item(v_tree, hf_dhcp_option43_pxeclient_padding, tvb, optoff, 1, ENC_BIG_ENDIAN);
		return (suboptoff);
	} else if (subopt == 255) {	/* End Option */
		proto_tree_add_item(v_tree, hf_dhcp_option43_pxeclient_end, tvb, optoff, 1, ENC_BIG_ENDIAN);
		/* Make sure we skip any junk left this option */
		return (optend);
	}

	if (suboptoff >= optend) {
		expert_add_info_format(pinfo, v_ti, &ei_dhcp_missing_subopt_length,
									"Suboption %d: no room left in option for suboption length", subopt);
		return (optend);
	}

	subopt_len = tvb_get_guint8(tvb, suboptoff);
	vti = proto_tree_add_uint_format_value(v_tree, hf_dhcp_option43_pxeclient_suboption,
				tvb, optoff, subopt_len+2, subopt, "(%d) %s",
				subopt, val_to_str_const(subopt, option43_pxeclient_suboption_vals, "Unknown"));

	o43pxeclient_v_tree = proto_item_add_subtree(vti, ett_dhcp_option43_suboption);
	proto_tree_add_item(o43pxeclient_v_tree, hf_dhcp_suboption_length, tvb, suboptoff, 1, ENC_BIG_ENDIAN);
	suboptoff++;

	ti = proto_tree_add_item(o43pxeclient_v_tree, hf_dhcp_option43_value, tvb, suboptoff, subopt_len, ENC_NA);
	proto_item_set_hidden(ti);

	if ((subopt < 1) || (subopt >= array_length(o43pxeclient_opt))) {
		expert_add_info_format(pinfo, vti, &ei_dhcp_suboption_invalid, "Unknown suboption %d (%d bytes)", subopt, subopt_len);
	} else if (o43pxeclient_opt[subopt].ftype == special) {
		/* I may need to decode that properly one day */
		if (o43pxeclient_opt[subopt].phf != NULL)
			proto_tree_add_item(o43pxeclient_v_tree, *o43pxeclient_opt[subopt].phf, tvb, suboptoff, subopt_len, ENC_BIG_ENDIAN);
		else {
			switch(subopt)
			{
			case O43PXE_DISCOVERY:
				proto_tree_add_bitmask(o43pxeclient_v_tree, tvb, suboptoff, hf_dhcp_option43_pxeclient_discovery_control,
						      ett_dhcp_option43_suboption_discovery, o43pxe_discovery_hf_flags, ENC_BIG_ENDIAN);
				break;
			case O43PXE_BOOT_SERVER:
				suboptoff_start = suboptoff;
				ti = proto_tree_add_item(o43pxeclient_v_tree, hf_dhcp_option43_pxeclient_boot_servers, tvb, suboptoff, subopt_len, ENC_NA);
				o43pxeclient_suboption_tree = proto_item_add_subtree(ti, ett_dhcp_option43_suboption_tree);
				while((suboptoff - suboptoff_start) < (subopt_len - 1)) {
					proto_tree_add_item(o43pxeclient_suboption_tree, hf_dhcp_option43_pxeclient_boot_server_type, tvb, suboptoff, 2, ENC_BIG_ENDIAN);
					suboptoff += 2;
					proto_tree_add_item_ret_uint(o43pxeclient_suboption_tree, hf_dhcp_option43_pxeclient_boot_server_count, tvb, suboptoff, 1, ENC_BIG_ENDIAN, &boot_server_ip_count);
					suboptoff += 1;
					while(boot_server_ip_count > 0) {
						proto_tree_add_item(o43pxeclient_suboption_tree, hf_dhcp_option43_pxeclient_boot_server_ip, tvb, suboptoff, 4, ENC_BIG_ENDIAN);
						suboptoff += 4;
						boot_server_ip_count -=1;
					}
				}
				break;
			case O43PXE_BOOT_MENU:
				suboptoff_start = suboptoff;
				ti = proto_tree_add_item(o43pxeclient_v_tree, hf_dhcp_option43_pxeclient_boot_menu, tvb, suboptoff, subopt_len, ENC_NA);
				o43pxeclient_suboption_tree = proto_item_add_subtree(ti, ett_dhcp_option43_suboption_tree);
				while((suboptoff - suboptoff_start) < (subopt_len - 1)) {
					proto_tree_add_item(o43pxeclient_suboption_tree, hf_dhcp_option43_pxeclient_boot_menu_type, tvb, suboptoff, 2, ENC_BIG_ENDIAN);
					suboptoff += 2;
					proto_tree_add_item_ret_uint(o43pxeclient_suboption_tree, hf_dhcp_option43_pxeclient_boot_menu_length, tvb, suboptoff, 1, ENC_BIG_ENDIAN, &boot_menu_length);
					suboptoff += 1;
					proto_tree_add_item(o43pxeclient_suboption_tree, hf_dhcp_option43_pxeclient_boot_menu_desc, tvb, suboptoff, boot_menu_length, ENC_ASCII);
					suboptoff += boot_menu_length;
				}
				break;
			case O43PXE_MENU_PROMPT:
				ti = proto_tree_add_item(o43pxeclient_v_tree, hf_dhcp_option43_pxeclient_menu_prompt, tvb, suboptoff, subopt_len, ENC_NA);
				o43pxeclient_suboption_tree = proto_item_add_subtree(ti, ett_dhcp_option43_suboption_tree);
				proto_tree_add_item(o43pxeclient_suboption_tree, hf_dhcp_option43_pxeclient_menu_prompt_timeout, tvb, suboptoff, 1, ENC_BIG_ENDIAN);
				suboptoff += 1;
				proto_tree_add_item(o43pxeclient_suboption_tree, hf_dhcp_option43_pxeclient_menu_prompt_prompt, tvb, suboptoff, subopt_len - 1, ENC_ASCII);
				break;
			case O43PXE_BOOT_ITEM:
				ti = proto_tree_add_item(o43pxeclient_v_tree, hf_dhcp_option43_pxeclient_boot_item, tvb, suboptoff, subopt_len, ENC_NA);
				o43pxeclient_suboption_tree = proto_item_add_subtree(ti, ett_dhcp_option43_suboption_tree);
				proto_tree_add_item(o43pxeclient_suboption_tree, hf_dhcp_option43_pxeclient_boot_item_type, tvb, suboptoff, 2, ENC_BIG_ENDIAN);
				suboptoff += 2;
				proto_tree_add_item(o43pxeclient_suboption_tree, hf_dhcp_option43_pxeclient_boot_item_layer, tvb, suboptoff, 2, ENC_NA);
				break;
			default:
				proto_tree_add_item(o43pxeclient_v_tree, hf_dhcp_option43_value, tvb, suboptoff, subopt_len, ENC_NA);
				break;
			}
		}
	} else {
		if (dhcp_handle_basic_types(pinfo, o43pxeclient_v_tree, vti, tvb, o43pxeclient_opt[subopt].ftype,
							suboptoff, subopt_len, o43pxeclient_opt[subopt].phf, &default_hfs) == 0)
		{
			expert_add_info_format(pinfo, vti, &hf_dhcp_subopt_unknown_type, "ERROR, please report: Unknown subopt type handler %d", subopt);
		}
	}

	optoff += (subopt_len + 2);
	return optoff;
}

static gboolean
dissect_pxeclient_vendor_info_heur( tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, void *data)
{
	int offset = 0;
	dhcp_option_data_t *option_data = (dhcp_option_data_t*)data;
	proto_tree* vendor_tree;

	/* PXE protocol 2.1 as described in the Intel specs */
	if ((option_data->vendor_class_id == NULL) ||
		(strncmp((const gchar*)option_data->vendor_class_id, "PXEClient", strlen("PXEClient")) != 0))
		return FALSE;

	proto_item_append_text(tree, " (PXEClient)");
	vendor_tree = proto_item_add_subtree(tree, ett_dhcp_option);

	while (tvb_reported_length_remaining(tvb, offset) > 0) {
		offset = dissect_vendor_pxeclient_suboption(pinfo, tree, vendor_tree,
			tvb, offset, tvb_reported_length(tvb));
	}

	return TRUE;
}

static void
dissect_vendor_avaya_param(proto_tree *tree, packet_info *pinfo, proto_item *vti,
		tvbuff_t *tvb, int optoff, wmem_strbuf_t *avaya_param_buf)
{
	const gchar *field;
	int len;

	field = wmem_strbuf_get_str(avaya_param_buf);
	len = (int)wmem_strbuf_get_len(avaya_param_buf);

	if((strncmp(field, "TLSSRVR=", 8) == 0) && ( len > 8 )) {
		proto_tree_add_string(tree, hf_dhcp_option242_avaya_tlssrvr, tvb, optoff, len, field + 8);
	}
	else if((strncmp(field, "HTTPSRVR=", 9) == 0) && ( len > 9)) {
		proto_tree_add_string(tree, hf_dhcp_option242_avaya_httpsrvr, tvb, optoff, len, field + 9);
	}
	else if((strncmp(field, "HTTPDIR=", 8) == 0) && ( len > 8)) {
		proto_tree_add_string(tree, hf_dhcp_option242_avaya_httpdir, tvb, optoff, len, field + 8);
	}
	else if((strncmp(field, "STATIC=", 7) == 0) && ( len > 7)) {
		proto_tree_add_string_format_value(tree, hf_dhcp_option242_avaya_static, tvb, optoff, len, field + 7, "%s (%s)", field + 7, str_to_str(field + 7, option242_avaya_static_vals, "Unknown (%s)"));
	}
	else if((strncmp(field, "MCIPADD=", 8) == 0) && ( len > 8)) {
		proto_tree_add_string(tree, hf_dhcp_option242_avaya_mcipadd, tvb, optoff, len, field + 8);
	}
	else if((strncmp(field, "DOT1X=", 6) == 0) && ( len > 6)) {
		proto_tree_add_string_format_value(tree, hf_dhcp_option242_avaya_dot1x, tvb, optoff, len, field + 6, "%s (%s)", field + 6, str_to_str(field + 6, option242_avaya_dot1x_vals, "Unknown (%s)"));
	}
	else if((strncmp(field, "ICMPDU=", 7) == 0) && ( len > 7)) {
		proto_tree_add_string_format_value(tree, hf_dhcp_option242_avaya_icmpdu, tvb, optoff, len, field + 7, "%s (%s)", field + 7, str_to_str(field + 7, option242_avaya_icmpdu_vals, "Unknown (%s)"));
	}
	else if((strncmp(field, "ICMPRED=", 8) == 0) && ( len > 8)) {
		proto_tree_add_string_format_value(tree, hf_dhcp_option242_avaya_icmpred, tvb, optoff, len, field + 8, "%s (%s)", field + 8, str_to_str(field + 8, option242_avaya_icmpred_vals, "Unknown (%s)"));
	}
	else if((strncmp(field, "L2Q=", 4) == 0) && ( len > 4)) {
		proto_tree_add_string_format_value(tree, hf_dhcp_option242_avaya_l2q, tvb, optoff, len, field + 4, "%s (%s)", field + 4, str_to_str(field + 4, option242_avaya_l2q_vals, "Unknown (%s)"));
	}
	else if((strncmp(field, "L2QVLAN=", 8) == 0) && ( len > 8)) {
		gint32 val = -1;
		gboolean val_valid;
		proto_item* pi;

		val_valid = ws_strtoi32(field + 8, NULL, &val);
		pi = proto_tree_add_int(tree, hf_dhcp_option242_avaya_l2qvlan, tvb, optoff, len, val);
		if (val_valid)
			expert_add_info(pinfo, pi, &ei_dhcp_option242_avaya_l2qvlan_invalid);
	}
	else if((strncmp(field, "LOGLOCAL=", 9) == 0) && ( len > 9)) {
		proto_tree_add_string_format_value(tree, hf_dhcp_option242_avaya_loglocal, tvb, optoff, len, field + 9, "%s (%s)", field + 9, str_to_str(field + 9, option242_avaya_loglocal_vals, "Unknown (%s)"));
	}
	else if((strncmp(field, "PHY1STAT=", 9) == 0) && ( len > 9)) {
		proto_tree_add_string_format_value(tree, hf_dhcp_option242_avaya_phy1stat, tvb, optoff, len, field + 9, "%s (%s)", field + 9, str_to_str(field + 9, option242_avaya_phystat_vals, "Unknown (%s)"));
	}
	else if((strncmp(field, "PHY2STAT=", 9) == 0) && ( len > 9)) {
		proto_tree_add_string_format_value(tree, hf_dhcp_option242_avaya_phy2stat, tvb, optoff, len, field + 9, "%s (%s)", field + 9, str_to_str(field + 9, option242_avaya_phystat_vals, "Unknown (%s)"));
	}
	else if((strncmp(field, "PROCPSWD=", 9) == 0) && ( len > 9)) {
		proto_tree_add_string(tree, hf_dhcp_option242_avaya_procpswd, tvb, optoff, len, field + 9);
	}
	else if((strncmp(field, "PROCSTAT=", 9) == 0) && ( len > 9)) {
		proto_tree_add_string_format_value(tree, hf_dhcp_option242_avaya_procstat, tvb, optoff, len, field + 9, "%s (%s)", field + 9, str_to_str(field + 9, option242_avaya_procstat_vals, "Unknown (%s)"));
	}
	else if((strncmp(field, "SNMPADD=", 8) == 0) && ( len > 8)) {
		proto_tree_add_string(tree, hf_dhcp_option242_avaya_snmpadd, tvb, optoff, len, field + 8);
	}
	else if((strncmp(field, "SNMPSTRING=", 11) == 0) && ( len > 11)) {
		proto_tree_add_string(tree, hf_dhcp_option242_avaya_snmpstring, tvb, optoff, len, field + 11);
	}
	else if((strncmp(field, "VLANTEST=", 9) == 0) && ( len > 9)) {
		gint32 val = -1;
		gboolean val_valid;
		proto_item* pi;

		val_valid = ws_strtoi32(field + 9, NULL, &val);
		pi = proto_tree_add_int(tree, hf_dhcp_option242_avaya_vlantest, tvb, optoff, len, val);
		if (!val_valid)
			expert_add_info(pinfo, pi, &ei_dhcp_option242_avaya_vlantest_invalid);
	}
	else {
		expert_add_info_format(pinfo, vti, &hf_dhcp_subopt_unknown_type, "ERROR, Unknown Avaya IP Telephone parameter %s", field);
	}
}

/* RFC3825Decoder:
 *
 * https://web.archive.org/web/20100312054301/http://www.enum.at/rfc3825encoder.529.0.html
 *
 * The code is no longer available.
 */
static void
rfc3825_lci_to_fixpoint(const unsigned char lci[16], struct rfc3825_location_fixpoint_t *fixpoint)
{
	fixpoint->latitude_res = (lci[0]>>2) & 0x3F; /* make sure that right-shift does not copy sign bit */
	if (lci[0] & 2) { /* LSB<<1 contains the sign of the latitude */
		/* Latitude is negative, expand two's complement */
		fixpoint->latitude = (((gint64)lci[0] & 3)<<32) | ((gint64)lci[1]<<24) |
					   ((gint64)lci[2]<<16) | ((gint64)lci[3]<<8)  |
					    (gint64)lci[4]	| ((gint64)0x3FFFFFFF<<34);

	} else {
		/* Latitude is positive */
		fixpoint->latitude = (((gint64)lci[0] & 3)<<32) | ((gint64)lci[1]<<24) |
					   ((gint64)lci[2]<<16) | ((gint64)lci[3]<<8)  |
					    (gint64)lci[4];
	}
	fixpoint->longitude_res = (lci[5]>>2) & 0x3F;  /* make sure that right-shift does not copy sign bit */
	if (lci[5] & 2) { /* LSB<<1 contains the sign of the latitude */
		/* Longitude is negative, expand two's complement */
		fixpoint->longitude = (((gint64)lci[5] & 3)<<32) | ((gint64)lci[6]<<24) |
					    ((gint64)lci[7]<<16) | ((gint64)lci[8]<<8)	|
					     (gint64)lci[9]	 | ((gint64)0x3FFFFFFF<<34);

	} else {
		/* Longitude is positive */
		fixpoint->longitude = (((gint64)lci[5] & 3)<<32) | ((gint64)lci[6]<<24) |
					    ((gint64)lci[7]<<16) | ((gint64)lci[8]<<8)	|
					     (gint64)lci[9];
	}
	fixpoint->altitude_type = (lci[10]>>4) & 0x0F;	/* make sure that right-shift does not copy sign bit */
	fixpoint->altitude_res	= ((lci[10] & 0x0F) << 2) | ((lci[11]>>6) & 0x03);
	if (lci[11] & 0x20) { /* LSB<<1 contains the sign of the latitude */
		/* Altitude is negative, expand two's complement */
		fixpoint->altitude = (((gint32)lci[11] & 0x3F)<<24) | ((gint32)lci[12]<<16) |
				     ((gint32)lci[13]<<8) | ((gint32)lci[14]) |
				      ((gint32)0x03<<30);

	} else {
		/* Altitude is positive */
		fixpoint->altitude = (((gint32)lci[11] & 0x3F)<<24) | ((gint32)lci[12]<<16) |
				     ((gint32)lci[13]<<8) | ((gint32)lci[14]);
	}

	fixpoint->datum_type = lci[15];

}

/* RFC3825Decoder:
 *
 * https://web.archive.org/web/20100312054301/http://www.enum.at/rfc3825encoder.529.0.html
 *
 * The code is no longer available.
 */
static int
rfc3825_fixpoint_to_decimal(struct rfc3825_location_fixpoint_t *fixpoint, struct rfc3825_location_decimal_t *decimal)
{
	/* Latitude */
	decimal->latitude = (double) fixpoint->latitude / (1 << 25);
	if ((decimal->latitude > 90) || (decimal->latitude < -90)) {
		return RFC3825_LATITUDE_OUTOFRANGE;
	}

	/* Latitude Uncertainty */
	if (fixpoint->latitude_res > 34) {
		return RFC3825_LATITUDE_UNCERTAINTY_OUTOFRANGE;
	}
	if (fixpoint->latitude_res > 8 ) {
		decimal->latitude_res = (double) 1  / (G_GUINT64_CONSTANT(1) << (fixpoint->latitude_res - 8));
	} else {
		decimal->latitude_res = (double) (G_GUINT64_CONSTANT(1) << (8 - fixpoint->latitude_res));
	}

	/* Longitude */
	decimal->longitude = (double) fixpoint->longitude / (1 << 25);
	if ((decimal->longitude > 180) || (decimal->longitude < -180)) {
		return RFC3825_LONGITUDE_OUTOFRANGE;
	}

	/* Longitude Uncertainty */
	if (fixpoint->longitude_res > 34) {
		return RFC3825_LONGITUDE_UNCERTAINTY_OUTOFRANGE;
	}
	if (fixpoint->longitude_res > 8 ) {
		decimal->longitude_res = (double) 1 / (G_GUINT64_CONSTANT(1) << (fixpoint->longitude_res - 8));
	} else {
		decimal->longitude_res = (double) (G_GUINT64_CONSTANT(1) << (8 - fixpoint->longitude_res));
	}

	/* Altitude Type */
	decimal->altitude_type = fixpoint->altitude_type;
	decimal->altitude = 0;
	decimal->altitude_res = 0;

	if (decimal->altitude_type == 0) { /* Unknown */
	} else if (decimal->altitude_type == 1) { /* Meters */
		/* Altitude */
		decimal->altitude = (double) fixpoint->altitude / (1 << 8);
		if ((decimal->altitude > ((gint32) 1<<21)-1) || (decimal->altitude < ((gint32) -(1<<21))))
			return RFC3825_ALTITUDE_OUTOFRANGE;

		/* Altitude Uncertainty */
		if (fixpoint->altitude_res > 30) {
			return RFC3825_ALTITUDE_UNCERTAINTY_OUTOFRANGE;
		}
		if (fixpoint->altitude_res > 21 ) {
			decimal->altitude_res = (double) 1 / (G_GUINT64_CONSTANT(1) << (fixpoint->altitude_res - 21));
		} else {
			decimal->altitude_res = (double) (G_GUINT64_CONSTANT(1) << (21 - fixpoint->altitude_res));
		}
	} else if (decimal->altitude_type == 2) { /* Floors */
		/* Altitude */
		if ((fixpoint->altitude_res != 30) && (fixpoint->altitude_res != 0)) {
			return RFC3825_ALTITUDE_UNCERTAINTY_OUTOFRANGE;
		}
		decimal->altitude = (double) fixpoint->altitude / (1 << 8);
	} else { /* invalid type */
		return RFC3825_ALTITUDE_TYPE_OUTOFRANGE;
	}

	/* Datum Type */
	decimal->datum_type = 0;
	if ((fixpoint->datum_type > 3) || (fixpoint->datum_type < 1)) {
		return RFC3825_DATUM_TYPE_OUTOFRANGE;
	}
	decimal->datum_type = fixpoint->datum_type;

	return RFC3825_NOERROR;
}

static int
dissect_dhcpopt_isns(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, void* data _U_)
{
	static int * const isns_functions_hf_flags[] = {
		&hf_dhcp_option_isns_functions_enabled,
		&hf_dhcp_option_isns_functions_dd_authorization,
		&hf_dhcp_option_isns_functions_sec_policy_distibution,
		&hf_dhcp_option_isns_functions_reserved,
		NULL
	};

	static int * const isns_dda_hf_flags[] = {
		&hf_dhcp_option_isns_discovery_domain_access_enabled,
		&hf_dhcp_option_isns_discovery_domain_access_control_node,
		&hf_dhcp_option_isns_discovery_domain_access_iscsi_target,
		&hf_dhcp_option_isns_discovery_domain_access_iscsi_inititator,
		&hf_dhcp_option_isns_discovery_domain_access_ifcp_target_port,
		&hf_dhcp_option_isns_discovery_domain_access_ifcp_initiator_port,
		&hf_dhcp_option_isns_discovery_domain_access_reserved,
		NULL
	};

	static int * const isns_administrative_flags[] = {
		&hf_dhcp_option_isns_administrative_flags_enabled,
		&hf_dhcp_option_isns_administrative_flags_heartbeat,
		&hf_dhcp_option_isns_administrative_flags_management_scns,
		&hf_dhcp_option_isns_administrative_flags_default_dd,
		&hf_dhcp_option_isns_administrative_flags_reserved,
		NULL
	};

	static int * const isns_server_security_flags[] = {
		&hf_dhcp_option_isns_server_security_bitmap_enabled,
		&hf_dhcp_option_isns_server_security_bitmap_ike_ipsec_enabled,
		&hf_dhcp_option_isns_server_security_bitmap_main_mode,
		&hf_dhcp_option_isns_server_security_bitmap_aggressive_mode,
		&hf_dhcp_option_isns_server_security_bitmap_pfs,
		&hf_dhcp_option_isns_server_security_bitmap_transport_mode,
		&hf_dhcp_option_isns_server_security_bitmap_tunnel_mode,
		&hf_dhcp_option_isns_server_security_bitmap_reserved,
		NULL
	};

	guint16 function_flags, dd_access_flags, administrative_flags;
	guint32 server_security_flags;
	proto_tree *server_tree;
	proto_item *item;
	int length = tvb_reported_length(tvb);
	int offset = 0, heartbeat_set = 0;

	if (length < 14) {
		expert_add_info_format(pinfo, tree, &ei_dhcp_bad_length, "length must be >= 14");
		return 1;
	}

	item = proto_tree_add_bitmask(tree, tvb, offset, hf_dhcp_option_isns_functions,
				      ett_dhcp_isns_functions, isns_functions_hf_flags, ENC_BIG_ENDIAN);
	function_flags = tvb_get_ntohs(tvb, offset);
	/* RFC 4174, section "2.1. iSNS Functions Field" specifies that if
	 * the field "Function Fields Enabled" is set to 0, then "the contents
	 * of all other iSNS Function fields MUST be ignored. We will display
	 * the fields but add an informational expert info. This goes for all
	 * the bitmasks: iSNS Functions, DD Access, Administrative Flags, iSNS
	 * Server Security Bitmap */
	if (ISNS_BITFIELD_NZ_MUST_BE_IGNORED(function_flags, F_ISNS_FUNCTIONS_ENABLED))
		expert_add_info(pinfo, item, &ei_dhcp_option_isns_ignored_bitfield);

	offset += 2;
	item = proto_tree_add_bitmask(tree, tvb, offset, hf_dhcp_option_isns_discovery_domain_access,
				      ett_dhcp_isns_discovery_domain_access, isns_dda_hf_flags, ENC_BIG_ENDIAN);
	dd_access_flags = tvb_get_ntohs(tvb, offset);
	if (ISNS_BITFIELD_NZ_MUST_BE_IGNORED(dd_access_flags, F_ISNS_DD_ACCESS_ENABLED))
		expert_add_info(pinfo, item, &ei_dhcp_option_isns_ignored_bitfield);

	offset += 2;
	administrative_flags = tvb_get_ntohs(tvb, offset);
	if (administrative_flags & F_ISNS_ADMIN_FLAGS_ENABLED) {
		if ((administrative_flags & F_ISNS_ADMIN_FLAGS_HEARTBEAT)) {
			if (length < 18) {
				expert_add_info_format(pinfo, tree, &ei_dhcp_bad_length, "length must be >= 18");
				return offset;
			}
			heartbeat_set = 1;
		}
	}
	item = proto_tree_add_bitmask(tree, tvb, offset, hf_dhcp_option_isns_administrative_flags,
				      ett_dhcp_isns_administrative_flags, isns_administrative_flags, ENC_BIG_ENDIAN);
	if (ISNS_BITFIELD_NZ_MUST_BE_IGNORED(administrative_flags, F_ISNS_ADMIN_FLAGS_ENABLED))
		expert_add_info(pinfo, item, &ei_dhcp_option_isns_ignored_bitfield);

	offset += 2;
	item = proto_tree_add_bitmask(tree, tvb, offset, hf_dhcp_option_isns_server_security_bitmap,
				      ett_dhcp_isns_server_security_bitmap, isns_server_security_flags, ENC_BIG_ENDIAN);
	server_security_flags = tvb_get_ntohl(tvb, offset);
	if (ISNS_BITFIELD_NZ_MUST_BE_IGNORED(server_security_flags, F_ISNS_SRV_SEC_BITMAP_ENABLED))
		expert_add_info(pinfo, item, &ei_dhcp_option_isns_ignored_bitfield);

	offset += 4;
	if (heartbeat_set) {
		proto_tree_add_item(tree, hf_dhcp_option_isns_heartbeat_originator_addr, tvb, offset, 4, ENC_BIG_ENDIAN);
		offset += 4;
	}

	proto_tree_add_item(tree, hf_dhcp_option_isns_primary_server_addr, tvb, offset, 4, ENC_BIG_ENDIAN);

	offset += 4;
	if (tvb_reported_length_remaining(tvb, offset) > 0) {
		server_tree = proto_tree_add_subtree(tree, tvb, offset, 0, ett_dhcp_isns_secondary_server_addr,
						&item, "Secondary iSNS Servers");
		dhcp_handle_basic_types(pinfo, server_tree, item, tvb, ipv4_list, offset, tvb_reported_length_remaining(tvb, offset),
						   &hf_dhcp_option_isns_secondary_server_addr_list, NULL);
	}

	return tvb_captured_length(tvb);
}

static const value_string option43_cl_suboption_vals[] = {
	{  0, "Padding" },
	{  1, "Suboption Request List" },
	{  2, "Device Type" },
	{  3, "eSAFE Types" },
	{  4, "Serial Number" },
	{  5, "Hardware Version" },
	{  6, "Software Version" },
	{  7, "Boot ROM version" },
	{  8, "Organizationally Unique Identifier" },
	{  9, "Model Number" },
	{ 10, "Vendor Name" },
	{ 11, "Address Realm" },
	{ 12, "CM/PS System Description" },
	{ 13, "CM/PS Firmware Revision" },
	{ 14, "Firewall Policy File Version" },
	{ 15, "eSafe Config File Devices" },
	{ 18, "Video Security Type" },
	{ 31, "MTA MAC Address" },
	{ 32, "Correlation ID" },
	{ 51, "Vendor Name" },
	{ 52, "CableCARD Capability" },
	{ 53, "Device Identification (CA)" },
	{ 54, "Device Identification (X.509)" },
	{ 179, "LCM Server" },
	{ 180, "LCM Domain" },
	{ 181, "LCM NIC option 0" },
	{ 190, "LCM Workgroup" },
	{ 191, "Discovery" },
	{ 192, "HH Configured" },
	{ 193, "LCM Version" },
	{ 194, "LCM Serial Number" },
	{ 255, "CL End" },
	{ 0, NULL}
};

static const value_string cablehome_subopt11_vals[] = {
	{ 1, "PS WAN-Man" },
	{ 2, "PS WAN-Data" },
	{ 0, NULL }
};

static int
dissect_vendor_cablelabs_suboption(packet_info *pinfo, proto_item *v_ti, proto_tree *v_tree,
				   tvbuff_t *tvb, int optoff, int optend)
{
	int	    suboptoff = optoff;
	guint8	    subopt;
	guint8	    subopt_len;
	proto_tree *o43cl_v_tree;
	proto_item *vti;

	struct basic_types_hfs default_hfs = {
		&hf_dhcp_option43_value,
		NULL,
		NULL,
		&hf_dhcp_option43_value_stringz,
		NULL,
		&hf_dhcp_option43_value_8,
		NULL,
		NULL,
		&hf_dhcp_option43_value_32,
		NULL,
		NULL
	};

	static struct opt_info o43cablelabs_opt[]= {
		/*  0 */ {"nop", special, &hf_dhcp_option43_cl_padding},	/* dummy */
		/*  1 */ {"Suboption Request List", string, &hf_dhcp_option43_cl_suboption_request_list},
		/*  2 */ {"Device Type", string, &hf_dhcp_option43_cl_device_type},
		/*  3 */ {"eSAFE Types", string, &hf_dhcp_option43_cl_esafe_type},
		/*  4 */ {"Serial Number", string, &hf_dhcp_option43_cl_serial_number},
		/*  5 */ {"Hardware Version", string, &hf_dhcp_option43_cl_hardware_version},
		/*  6 */ {"Software Version", string, &hf_dhcp_option43_cl_software_version},
		/*  7 */ {"Boot ROM version", string, &hf_dhcp_option43_cl_boot_rom_version},
		/*  8 */ {"Organizationally Unique Identifier", special, &hf_dhcp_option43_cl_oui_bytes},
		/*  9 */ {"Model Number", string, &hf_dhcp_option43_cl_model_number},
		/* 10 */ {"Vendor Name", string, &hf_dhcp_option43_cl_vendor_name10},
		/* *** 11-30: CableHome *** */
		/* 11 */ {"Address Realm", val_u_byte, &hf_dhcp_option43_cl_address_realm},
		/* 12 */ {"CM/PS System Description", string, &hf_dhcp_option43_cl_cm_ps_system_desc},
		/* 13 */ {"CM/PS Firmware Revision", string, &hf_dhcp_option43_cl_cm_ps_firmware_revision},
		/* 14 */ {"Firewall Policy File Version", string, &hf_dhcp_option43_cl_firewall_policy_file_version},
		/* 15 */ {"eSafe Config File Devices", string, &hf_dhcp_option43_cl_esafe_config_file_devices},
		/* 16 */ {"Unassigned (CableHome)", special, NULL},
		/* 17 */ {"Unassigned (CableHome)", special, NULL},
		/* 18 */ {"Video Security Type", string, &hf_dhcp_option43_cl_video_security_tape},
		/* 19 */ {"Unassigned (CableHome)", special, NULL},
		/* 20 */ {"Unassigned (CableHome)", special, NULL},
		/* 21 */ {"Unassigned (CableHome)", special, NULL},
		/* 22 */ {"Unassigned (CableHome)", special, NULL},
		/* 23 */ {"Unassigned (CableHome)", special, NULL},
		/* 24 */ {"Unassigned (CableHome)", special, NULL},
		/* 25 */ {"Unassigned (CableHome)", special, NULL},
		/* 26 */ {"Unassigned (CableHome)", special, NULL},
		/* 27 */ {"Unassigned (CableHome)", special, NULL},
		/* 28 */ {"Unassigned (CableHome)", special, NULL},
		/* 29 */ {"Unassigned (CableHome)", special, NULL},
		/* 30 */ {"Unassigned (CableHome)", special, NULL},
		/* *** 31-50: PacketCable *** */
		/* 31 */ {"MTA MAC Address", special, &hf_dhcp_option43_cl_mta_mac_address},
		/* 32 */ {"Correlation ID", val_u_long, &hf_dhcp_option43_cl_correlation_ID},
		/* 33 */ {"Unassigned (PacketCable)", special, NULL},
		/* 34 */ {"Unassigned (PacketCable)", special, NULL},
		/* 35 */ {"Unassigned (PacketCable)", special, NULL},
		/* 36 */ {"Unassigned (PacketCable)", special, NULL},
		/* 37 */ {"Unassigned (PacketCable)", special, NULL},
		/* 38 */ {"Unassigned (PacketCable)", special, NULL},
		/* 39 */ {"Unassigned (PacketCable)", special, NULL},
		/* 40 */ {"Unassigned (PacketCable)", special, NULL},
		/* 41 */ {"Unassigned (PacketCable)", special, NULL},
		/* 42 */ {"Unassigned (PacketCable)", special, NULL},
		/* 43 */ {"Unassigned (PacketCable)", special, NULL},
		/* 44 */ {"Unassigned (PacketCable)", special, NULL},
		/* 45 */ {"Unassigned (PacketCable)", special, NULL},
		/* 46 */ {"Unassigned (PacketCable)", special, NULL},
		/* 47 */ {"Unassigned (PacketCable)", special, NULL},
		/* 48 */ {"Unassigned (PacketCable)", special, NULL},
		/* 49 */ {"Unassigned (PacketCable)", special, NULL},
		/* 50 */ {"Unassigned (PacketCable)", special, NULL},
		/* *** 51-127: CableLabs *** */
		/* 51 */ {"Vendor Name", string, &hf_dhcp_option43_cl_vendor_name51},
		/* 52 */ {"CableCARD Capability", special, &hf_dhcp_option43_cl_cablecard_capability},
		/* 53 */ {"Device Identification (CA)", special, &hf_dhcp_option43_cl_device_id_ca},
		/* 54 */ {"Device Identification (X.509)", string, &hf_dhcp_option43_cl_device_id_x509},
		/* 55 */ {"Unassigned (CableLabs)", special, NULL},
		/* *** 128-254: Vendors *** */
		/* 128-254 {"Unassigned (Vendors)", special, NULL}, */
		/* 255 {"end options", special, &hf_dhcp_option43_cl_end} */
	};

	subopt = tvb_get_guint8(tvb, optoff);
	suboptoff++;

	if (subopt == 0) {
		proto_tree_add_item(v_tree, hf_dhcp_option43_cl_padding, tvb, optoff, 1, ENC_BIG_ENDIAN);
		return (suboptoff);
	} else if (subopt == 255) {	/* End Option */
		proto_tree_add_item(v_tree, hf_dhcp_option43_cl_end, tvb, optoff, 1, ENC_BIG_ENDIAN);
		/* Make sure we skip any junk left this option */
		return (optend);
	}

	if (suboptoff >= optend) {
		expert_add_info_format(pinfo, v_ti, &ei_dhcp_missing_subopt_length,
									"Suboption %d: no room left in option for suboption length", subopt);
		return (optend);
	}

	subopt_len = tvb_get_guint8(tvb, suboptoff);
	vti = proto_tree_add_uint_format_value(v_tree, hf_dhcp_option43_cl_suboption,
				tvb, optoff, subopt_len+2, subopt, "(%d) %s",
				subopt, val_to_str_const(subopt, option43_cl_suboption_vals, "Unknown"));

	o43cl_v_tree = proto_item_add_subtree(vti, ett_dhcp_option43_suboption);
	proto_tree_add_item(o43cl_v_tree, hf_dhcp_suboption_length, tvb, suboptoff, 1, ENC_BIG_ENDIAN);
	suboptoff++;

	if (suboptoff+subopt_len > optend) {
		expert_add_info_format(pinfo, vti, &ei_dhcp_missing_subopt_value,
						"Suboption %d: no room left in option for suboption value", subopt);
		return (optend);
	}

	if ( (subopt < 1 ) || (subopt >= array_length(o43cablelabs_opt)) ) {
		proto_tree_add_item(o43cl_v_tree, hf_dhcp_option43_value, tvb, suboptoff, subopt_len, ENC_NA);
	} else if (o43cablelabs_opt[subopt].ftype == special) {
		switch(subopt)
		{
		case 8:/* OUI */
			/* CableLabs specs treat 43.8 inconsistently
			 * as either binary (3b) or string (6b) */
			if (subopt_len == 3) {
				proto_tree_add_bytes_format_value(o43cl_v_tree, hf_dhcp_option43_cl_oui_bytes, tvb, suboptoff, subopt_len, NULL,
					"%02x:%02x:%02x", tvb_get_guint8(tvb, suboptoff), tvb_get_guint8(tvb, suboptoff+1), tvb_get_guint8(tvb, suboptoff+2));
			} else if (subopt_len == 6) {
				proto_tree_add_item(o43cl_v_tree, hf_dhcp_option43_cl_oui_string, tvb, suboptoff, subopt_len, ENC_ASCII);
			} else {
				expert_add_info_format(pinfo, vti, &ei_dhcp_bad_length, "length isn't 3 or 6");
			}
			break;
		case 31: /* MTA MAC address */
			if (subopt_len != 6) {
				expert_add_info_format(pinfo, vti, &ei_dhcp_bad_length, "length isn't 6");
				break;
			}

			proto_tree_add_item(o43cl_v_tree, hf_dhcp_option43_cl_mta_mac_address, tvb, suboptoff, 6, ENC_NA);
			break;
		default:
			if (o43cablelabs_opt[subopt].phf != NULL)
				proto_tree_add_item(o43cl_v_tree, *o43cablelabs_opt[subopt].phf, tvb, suboptoff, subopt_len, ENC_BIG_ENDIAN);
			else
				proto_tree_add_item(o43cl_v_tree, hf_dhcp_option43_value, tvb, suboptoff, subopt_len, ENC_NA);
		}
	}
	else {
		if (dhcp_handle_basic_types(pinfo, o43cl_v_tree, vti, tvb, o43cablelabs_opt[subopt].ftype,
							suboptoff, subopt_len, o43cablelabs_opt[subopt].phf, &default_hfs) == 0) {
			expert_add_info_format(pinfo, vti, &hf_dhcp_subopt_unknown_type, "ERROR, please report: Unknown subopt type handler %d", subopt);
		}
	}

	optoff += (subopt_len + 2);
	return optoff;
}

static gboolean
dissect_cablelabs_vendor_info_heur( tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, void *data)
{
	int offset = 0;
	dhcp_option_data_t *option_data = (dhcp_option_data_t*)data;
	proto_tree* vendor_tree;

	/* Vendor Class IDs
	 * DOCSIS - docsis
	 * CableHome - CableHome
	 * OpenCable2.0 - OpenCable2.0
	 * PacketCable - pktc
	 * DEMARC - DEMARC
	 * sRouter - SROUTER
	 * Remote PHY - RPD
	 * eDOCSIS - PTA or ECM
	 * OpenCable TRIF - TR
	 */

	if ((option_data->vendor_class_id != NULL) &&
		((strncmp((const gchar*)option_data->vendor_class_id, "pktc", strlen("pktc")) == 0) ||
		 (strncmp((const gchar*)option_data->vendor_class_id, "docsis", strlen("docsis")) == 0) ||
		 (strncmp((const gchar*)option_data->vendor_class_id, "OpenCable2.0", strlen("OpenCable2.0")) == 0) ||
		 (strncmp((const gchar*)option_data->vendor_class_id, "CableHome", strlen("CableHome")) == 0) ||
		 (strncmp((const gchar*)option_data->vendor_class_id, "RPD", strlen("RPD")) == 0) ||
		 (strncmp((const gchar*)option_data->vendor_class_id, "RMD", strlen("RMD")) == 0) ||
		 (strncmp((const gchar*)option_data->vendor_class_id, "ECM", strlen("ECM")) == 0) ||
		 (strncmp((const gchar*)option_data->vendor_class_id, "PTA", strlen("PTA")) == 0) ||
		 (strncmp((const gchar*)option_data->vendor_class_id, "DEMARC", strlen("DEMARC")) == 0) ||
		 (strncmp((const gchar*)option_data->vendor_class_id, "TR", strlen("TR")) == 0) ||
		 (strncmp((const gchar*)option_data->vendor_class_id, "SROUTER", strlen("SROUTER")) == 0))) {
		/* CableLabs standard - see www.cablelabs.com/projects */
		proto_item_append_text(tree, " (CableLabs)");
		vendor_tree = proto_item_add_subtree(tree, ett_dhcp_option);

		while (tvb_reported_length_remaining(tvb, offset) > 0) {
			offset = dissect_vendor_cablelabs_suboption(pinfo, tree, vendor_tree,
				tvb, offset, tvb_reported_length(tvb));
		}
		return TRUE;
	}

	return FALSE;
}

static gboolean
dissect_aruba_ap_vendor_info_heur( tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree, void *data)
{
	int offset = 0;
	dhcp_option_data_t *option_data = (dhcp_option_data_t*)data;
	proto_tree* vendor_tree;

	if ((option_data->vendor_class_id == NULL) ||
		(strncmp((const gchar*)option_data->vendor_class_id, ARUBA_AP, strlen(ARUBA_AP)) != 0))
		return FALSE;

	proto_item_append_text(tree, " (Aruba AP)");
	vendor_tree = proto_item_add_subtree(tree, ett_dhcp_option);

	proto_tree_add_item(vendor_tree, hf_dhcp_option43_arubaap_controllerip, tvb, offset, tvb_reported_length(tvb), ENC_ASCII);
	return TRUE;
}

static gboolean
dissect_aruba_instant_ap_vendor_info_heur( tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree, void *data)
{
	int offset = 0;
	int reported_len = tvb_reported_length(tvb);
	dhcp_option_data_t *option_data = (dhcp_option_data_t*)data;
	proto_tree* vendor_tree;
	proto_item* vendor_item;
	gint32 nameorglen, ampiplen;

	/* Aruba  Instant AP */
	if ((option_data->vendor_class_id == NULL) ||
		(strncmp((const gchar*)option_data->vendor_class_id, ARUBA_INSTANT_AP, strlen(ARUBA_INSTANT_AP)) != 0))
		return FALSE;

	proto_item_append_text(tree, " (Aruba Instant AP)");

	vendor_item = proto_tree_add_item(tree, hf_dhcp_option43_arubaiap, tvb, offset, reported_len, ENC_ASCII);
	vendor_tree = proto_item_add_subtree(vendor_item, ett_dhcp_option43_suboption);
	nameorglen = tvb_find_guint8(tvb, offset, tvb_reported_length(tvb), ',');
	proto_tree_add_item(vendor_tree, hf_dhcp_option43_arubaiap_nameorg, tvb, offset, nameorglen, ENC_ASCII);
	offset += (nameorglen+1);
	ampiplen = tvb_find_guint8(tvb, offset, reported_len-nameorglen-1, ',') - offset;
	proto_tree_add_item(vendor_tree, hf_dhcp_option43_arubaiap_ampip, tvb, offset, ampiplen, ENC_ASCII);
	offset += (ampiplen+1);
	proto_tree_add_item(vendor_tree, hf_dhcp_option43_arubaiap_password, tvb, offset, tvb_reported_length_remaining(tvb, offset), ENC_ASCII);

	return TRUE;
}

static const value_string option43_bsdp_suboption_vals[] = {
	{  0, "Pad" },
	{  1, "Message Type" },
	{  2, "Version" },
	{  3, "Server Identifier" },
	{  4, "Server Priority" },
	{  5, "Reply Port" },
	{  6, "Boot Image List Path" },
	{  7, "Default Boot Image" },
	{  8, "Selected Boot Image" },
	{  9, "Boot Image List" },
	{ 10, "NetBoot 1.0 Firmware" },
	{ 11, "Boot Image Attributes Filter List" },
	{ 12, "Maximum Message Size" },
	{ 255, "End" },
	{ 0, NULL}
};

static void
dissect_vendor_bsdp_boot_image(proto_tree *v_tree, tvbuff_t *tvb, int optoff)
{
	static int * const dhcp_o43_bsdp_attributes_flags[] = {
		&hf_dhcp_option43_bsdp_boot_image_attribute_install,
		&hf_dhcp_option43_bsdp_boot_image_attribute_kind,
		&hf_dhcp_option43_bsdp_boot_image_attribute_reserved,
		NULL
	};

	proto_tree_add_bitmask(v_tree, tvb, optoff, hf_dhcp_option43_bsdp_boot_image_attribute, ett_dhcp_o43_bsdp_attributes_flags, dhcp_o43_bsdp_attributes_flags, ENC_NA);
}

static int
dissect_vendor_bsdp_suboption(packet_info *pinfo, proto_item *v_ti, proto_tree *v_tree,
				   tvbuff_t *tvb, int optoff, int optend)
{
	int	 suboptoff = optoff;
	int	    attributes_off;
	guint8      subopt, string_len;
	guint8      subopt_len, attributes_len;
	guint       item_len;
	proto_tree *o43bsdp_v_tree, *o43bsdp_va_tree, *o43bsdp_vb_tree, *o43bsdp_vc_tree, *o43bsdp_vd_tree;
	proto_item *vti, *ti, *tj;

	subopt = tvb_get_guint8(tvb, optoff);
	suboptoff++;

	if (subopt == 0 || subopt == 255) {
		/* Pad (0) and End (255) have implicit length of 1. */
		item_len = 1;
	} else if (suboptoff >= optend) {
		expert_add_info_format(pinfo, v_ti, &ei_dhcp_missing_subopt_length,
									"Suboption %d: no room left in option for suboption length", subopt);
		return (optend);
	} else {
		subopt_len = tvb_get_guint8(tvb, suboptoff);
		item_len = subopt_len + 2;
	}

	vti = proto_tree_add_uint_format_value(v_tree, hf_dhcp_option43_bsdp_suboption,
				tvb, optoff, item_len, subopt, "(%d) %s",
				subopt, val_to_str_const(subopt, option43_bsdp_suboption_vals, "Unknown"));
	if (item_len == 1) {
		return (optoff + 1);
	}

	o43bsdp_v_tree = proto_item_add_subtree(vti, ett_dhcp_option43_suboption);
	proto_tree_add_item(o43bsdp_v_tree, hf_dhcp_suboption_length, tvb, suboptoff, 1, ENC_BIG_ENDIAN);
	suboptoff++;

	if (suboptoff+subopt_len > optend) {
		expert_add_info_format(pinfo, vti, &ei_dhcp_missing_subopt_value,
						"Suboption %d: no room left in option for suboption value", subopt);
		return (optend);
	}

	switch(subopt)
	{
		case 1:
			proto_tree_add_item(o43bsdp_v_tree, hf_dhcp_option43_bsdp_message_type, tvb, suboptoff, subopt_len, ENC_ASCII|ENC_NA);
			break;
		case 2:
			proto_tree_add_item(o43bsdp_v_tree, hf_dhcp_option43_bsdp_version, tvb, suboptoff, subopt_len, ENC_BIG_ENDIAN);
			break;
		case 3:
			proto_tree_add_item(o43bsdp_v_tree, hf_dhcp_option43_bsdp_server_identifier, tvb, suboptoff, subopt_len, ENC_BIG_ENDIAN);
			break;
		case 4:
			proto_tree_add_item(o43bsdp_v_tree, hf_dhcp_option43_bsdp_server_priority, tvb, suboptoff, subopt_len, ENC_BIG_ENDIAN);
			break;
		case 5:
			proto_tree_add_item(o43bsdp_v_tree, hf_dhcp_option43_bsdp_reply_port, tvb, suboptoff, subopt_len, ENC_BIG_ENDIAN);
			break;
		case 6:
			proto_tree_add_item(o43bsdp_v_tree, hf_dhcp_option43_bsdp_boot_image_list_path, tvb, suboptoff, subopt_len, ENC_ASCII);
			break;
		case 7:
			ti = proto_tree_add_item(o43bsdp_v_tree, hf_dhcp_option43_bsdp_default_boot_image_id, tvb, suboptoff, subopt_len, ENC_BIG_ENDIAN|ENC_NA);
			o43bsdp_va_tree = proto_item_add_subtree(ti, ett_dhcp_o43_bsdp_boot_image);
			dissect_vendor_bsdp_boot_image(o43bsdp_va_tree, tvb, suboptoff);
			proto_tree_add_item(o43bsdp_va_tree, hf_dhcp_option43_bsdp_boot_image_index, tvb, suboptoff+2, subopt_len-2, ENC_BIG_ENDIAN|ENC_NA);
			break;
		case 8:
			ti = proto_tree_add_item(o43bsdp_v_tree, hf_dhcp_option43_bsdp_selected_boot_image_id, tvb, suboptoff, subopt_len, ENC_BIG_ENDIAN|ENC_NA);
			o43bsdp_vc_tree = proto_item_add_subtree(ti, ett_dhcp_o43_bsdp_boot_image);
			dissect_vendor_bsdp_boot_image(o43bsdp_vc_tree, tvb, suboptoff);
			proto_tree_add_item(o43bsdp_vc_tree, hf_dhcp_option43_bsdp_boot_image_index, tvb, suboptoff+2, subopt_len-2, ENC_BIG_ENDIAN|ENC_NA);
			break;
		case 9:
			ti = proto_tree_add_item(o43bsdp_v_tree, hf_dhcp_option43_bsdp_boot_image_list, tvb, suboptoff, subopt_len, ENC_BIG_ENDIAN|ENC_NA);
			attributes_len = subopt_len;
			attributes_off = suboptoff;
			o43bsdp_vd_tree = proto_item_add_subtree(ti, ett_dhcp_o43_bsdp_image_desc_list);
			while (attributes_len >= 5) {
				string_len = tvb_get_guint8(tvb, attributes_off+4);
				if (string_len > 0) {
					tj = proto_tree_add_item(o43bsdp_vd_tree, hf_dhcp_option43_bsdp_image_desc, tvb, attributes_off, string_len+5, ENC_BIG_ENDIAN|ENC_NA);
					o43bsdp_vb_tree = proto_item_add_subtree(tj, ett_dhcp_o43_bsdp_image_desc);
					dissect_vendor_bsdp_boot_image(o43bsdp_vb_tree, tvb, attributes_off);
					proto_tree_add_item(o43bsdp_vb_tree, hf_dhcp_option43_bsdp_boot_image_index, tvb, attributes_off+2, 2, ENC_BIG_ENDIAN|ENC_NA);
					proto_tree_add_item(o43bsdp_vb_tree, hf_dhcp_option43_bsdp_boot_image_name_len, tvb, attributes_off+4, 1, ENC_BIG_ENDIAN|ENC_NA);
					proto_tree_add_item(o43bsdp_vb_tree, hf_dhcp_option43_bsdp_boot_image_name, tvb, attributes_off+5, string_len, ENC_UTF_8);
				}
				attributes_off += 5 + string_len;
				attributes_len -= 5 + string_len;
			}
			break;
		case 10:
			proto_tree_add_item(o43bsdp_v_tree, hf_dhcp_option43_bsdp_netboot_firmware, tvb, suboptoff, subopt_len, ENC_NA);
			break;
		case 11:
			ti = proto_tree_add_item(o43bsdp_v_tree, hf_dhcp_option43_bsdp_attributes_filter_list, tvb, suboptoff, subopt_len, ENC_BIG_ENDIAN|ENC_NA);
			attributes_len = subopt_len;
			attributes_off = suboptoff;
			o43bsdp_va_tree = proto_item_add_subtree(ti, ett_dhcp_o43_bsdp_attributes);
			while (attributes_len >= 2) {
				dissect_vendor_bsdp_boot_image(o43bsdp_va_tree, tvb, attributes_off);
				attributes_off+=2;
				attributes_len-=2;
			}
			break;
		case 12:
			proto_tree_add_item(o43bsdp_v_tree, hf_dhcp_option43_bsdp_message_size, tvb, suboptoff, subopt_len, ENC_BIG_ENDIAN|ENC_NA);
			break;
	}

	optoff += item_len;
	return optoff;
}

static gboolean
dissect_apple_bsdp_vendor_info_heur(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, void *data)
{
	int offset = 0;
	dhcp_option_data_t *option_data = (dhcp_option_data_t*)data;
	proto_tree* vendor_tree;

	if ((option_data->vendor_class_id == NULL) ||
		(strncmp((const gchar*)option_data->vendor_class_id, APPLE_BSDP_SERVER, strlen(APPLE_BSDP_SERVER)) != 0))
		return FALSE;

	/* Apple BSDP */
	proto_item_append_text(tree, " (Boot Server Discovery Protocol (BSDP))");
	vendor_tree = proto_item_add_subtree(tree, ett_dhcp_option);

	while (tvb_reported_length_remaining(tvb, offset) > 0) {
		offset = dissect_vendor_bsdp_suboption(pinfo, tree, vendor_tree,
			tvb, offset, tvb_reported_length(tvb));
	}

	return TRUE;
}

/* Cisco Vendor Specific Information */

/*
        {  1, "1" },            * D,R: 03 *
        {  2, "2" },            * D,R: 01 *
        {  3, "3" },            * D,R: 00 01 # O,A: 00 02 *
        {  4, "Node ID" },      * O,A: 00 00 00 ca *
        {  5, "5" },            * O,A: 01 *
        {  6, "6" },            * D,R: 01 # O,A: 01 *
        {  7, "Model" },        * D,R: N9K-C9336PQ *
        {  8, "APIC UUID" },    * O,A: 09bced36-69f1-11e6-96ce-8baf09371338 *
        {  9, "Fabricname" },   * O,A: ams-fab1 *
        { 10, "10" },           * D,R: 00 00 00 01 *
        { 11, "SerialNo" },     * D,R: SAL1926J4QW *
        { 12, "Client Int" },   * D,O: eth1/20.20 # R,A: eth1/20.20 *
*/
static const value_string option43_cisco_suboption_vals[] = {
	{  1, "Unk-1 (Node role?)" },		/* uint8 */
	{  2, "Unk-2 (Spine level?)" },		/* uint8 */
	{  3, "Unk-3 (Pod ID?)" },		/* uint16 */
	{  4, "Node ID" },			/* uint32 */
	{  5, "Unk-5" },			/* uint8 */
	{  6, "Unk-6" },			/* uint8 */
	{  7, "Model" },			/* String */
	{  8, "APIC UUID" },			/* String */
	{  9, "Fabricname" },			/* String */
	{ 10, "Unk-10" },			/* uint32 */
	{ 11, "SerialNo" },			/* String */
	{ 12, "Interfacename" },		/* String */

	{ 0, NULL}
};

static int
dissect_vendor_cisco_suboption(packet_info *pinfo, proto_item *v_ti, proto_tree *v_tree,
				   tvbuff_t *tvb, int optoff, int optend)
{
	int	    suboptoff = optoff;
	guint8      subopt;
	guint8      subopt_len;
	guint       item_len;
	proto_tree *o43cisco_v_tree;
	proto_item *vti;

	subopt = tvb_get_guint8(tvb, optoff);
	suboptoff++;

	if (suboptoff >= optend) {
		expert_add_info_format(pinfo, v_ti, &ei_dhcp_missing_subopt_length,
									"Suboption %d: No room left in option for suboption length", subopt);
		return (optend);
	} else {
		subopt_len = tvb_get_guint8(tvb, suboptoff);
		item_len = subopt_len + 2;
	}

	vti = proto_tree_add_uint_format_value(v_tree, hf_dhcp_option43_cisco_suboption,
				tvb, optoff, item_len, subopt, "(%d) %s",
				subopt, val_to_str_const(subopt, option43_cisco_suboption_vals, "Unknown"));

	o43cisco_v_tree = proto_item_add_subtree(vti, ett_dhcp_option43_suboption);
	proto_tree_add_item(o43cisco_v_tree, hf_dhcp_suboption_length, tvb, suboptoff, 1, ENC_BIG_ENDIAN);
	suboptoff++;

	if (suboptoff+subopt_len > optend) {
		expert_add_info_format(pinfo, vti, &ei_dhcp_missing_subopt_value,
						"Suboption %d: Not sufficient room left in option for suboption value", subopt);
		return (optend);
	}

	switch(subopt)
	{
		case 1:
			proto_tree_add_item(o43cisco_v_tree, hf_dhcp_option43_cisco_unknown1, tvb, suboptoff, subopt_len, ENC_BIG_ENDIAN);
			break;
		case 2:
			proto_tree_add_item(o43cisco_v_tree, hf_dhcp_option43_cisco_unknown2, tvb, suboptoff, subopt_len, ENC_BIG_ENDIAN);
			break;
		case 3:
			proto_tree_add_item(o43cisco_v_tree, hf_dhcp_option43_cisco_unknown3, tvb, suboptoff, subopt_len, ENC_BIG_ENDIAN);
			break;
		case 4:
			proto_tree_add_item(o43cisco_v_tree, hf_dhcp_option43_cisco_nodeid, tvb, suboptoff, subopt_len, ENC_BIG_ENDIAN);
			break;
		case 5:
			proto_tree_add_item(o43cisco_v_tree, hf_dhcp_option43_cisco_unknown5, tvb, suboptoff, subopt_len, ENC_BIG_ENDIAN);
			break;
		case 6:
			proto_tree_add_item(o43cisco_v_tree, hf_dhcp_option43_cisco_unknown6, tvb, suboptoff, subopt_len, ENC_BIG_ENDIAN);
			break;
		case 7:
			proto_tree_add_item(o43cisco_v_tree, hf_dhcp_option43_cisco_model, tvb, suboptoff, subopt_len, ENC_ASCII);
			break;
		case 8:
			proto_tree_add_item(o43cisco_v_tree, hf_dhcp_option43_cisco_apicuuid, tvb, suboptoff, subopt_len, ENC_ASCII);
			break;
		case 9:
			proto_tree_add_item(o43cisco_v_tree, hf_dhcp_option43_cisco_fabricname, tvb, suboptoff, subopt_len, ENC_ASCII);
			break;
		case 10:
			proto_tree_add_item(o43cisco_v_tree, hf_dhcp_option43_cisco_unknown10, tvb, suboptoff, subopt_len, ENC_BIG_ENDIAN);
			break;
		case 11:
			proto_tree_add_item(o43cisco_v_tree, hf_dhcp_option43_cisco_serialno, tvb, suboptoff, subopt_len, ENC_ASCII);
			break;
		case 12:
			proto_tree_add_item(o43cisco_v_tree, hf_dhcp_option43_cisco_clientint, tvb, suboptoff, subopt_len, ENC_ASCII);
			break;
		default:
			proto_tree_add_item(o43cisco_v_tree, hf_dhcp_option43_cisco_unknown, tvb, suboptoff, subopt_len, ENC_NA);
	}

	optoff += item_len;
	return optoff;
}

static gboolean
dissect_cisco_vendor_info_heur(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, void *data)
{
	int offset = 0;
	dhcp_option_data_t *option_data = (dhcp_option_data_t*)data;
	proto_tree* vendor_tree;

	if ((option_data->vendor_class_id == NULL) ||
		(strncmp((const gchar*)option_data->vendor_class_id, CISCO_VCID, strlen(CISCO_VCID)) != 0))
		return FALSE;

	/* Cisco ACI Fabric*/
	proto_item_append_text(tree, " (Cisco ACI Fabric)");
	vendor_tree = proto_item_add_subtree(tree, ett_dhcp_option);

	while (tvb_reported_length_remaining(tvb, offset) > 0) {
		offset = dissect_vendor_cisco_suboption(pinfo, tree, vendor_tree,
			tvb, offset, tvb_reported_length(tvb));
	}

	return TRUE;
}

/* Aerohive (Extremenetworks) Vendor Specific Information */

static const value_string option43_aerohive_suboption_vals[] = {
	{  225, "XiqHostname" },	/* String */
	{  226, "XiqIpAddress" },	/* Ipv4address */

	{ 0, NULL}
};

static int
dissect_vendor_aerohive_suboption(packet_info *pinfo, proto_item *v_ti, proto_tree *v_tree,
				   tvbuff_t *tvb, int optoff, int optend)
{
	int	    suboptoff = optoff;
	guint8      subopt;
	guint8      subopt_len;
	guint       item_len;
	proto_tree *o43aerohive_v_tree;
	proto_item *vti;

	subopt = tvb_get_guint8(tvb, optoff);
	suboptoff++;

	if (suboptoff >= optend) {
		expert_add_info_format(pinfo, v_ti, &ei_dhcp_missing_subopt_length,
									"Suboption %d: No room left in option for suboption length", subopt);
		return (optend);
	} else {
		subopt_len = tvb_get_guint8(tvb, suboptoff);
		item_len = subopt_len + 2;
	}

	vti = proto_tree_add_uint_format_value(v_tree, hf_dhcp_option43_aerohive_suboption,
				tvb, optoff, item_len, subopt, "(%d) %s",
				subopt, val_to_str_const(subopt, option43_aerohive_suboption_vals, "Unknown"));

	o43aerohive_v_tree = proto_item_add_subtree(vti, ett_dhcp_option43_suboption);
	proto_tree_add_item(o43aerohive_v_tree, hf_dhcp_suboption_length, tvb, suboptoff, 1, ENC_BIG_ENDIAN);
	suboptoff++;

	if (suboptoff+subopt_len > optend) {
		expert_add_info_format(pinfo, vti, &ei_dhcp_missing_subopt_value,
						"Suboption %d: Not sufficient room left in option for suboption value", subopt);
		return (optend);
	}

	switch(subopt)
	{
		case 225:
			proto_tree_add_item(o43aerohive_v_tree, hf_dhcp_option43_aerohive_xiqhostname, tvb, suboptoff, subopt_len, ENC_ASCII);
			break;
		case 226:
			proto_tree_add_item(o43aerohive_v_tree, hf_dhcp_option43_aerohive_xiqipaddress, tvb, suboptoff, subopt_len, ENC_BIG_ENDIAN);
			break;
		default:
			proto_tree_add_item(o43aerohive_v_tree, hf_dhcp_option43_aerohive_unknown, tvb, suboptoff, subopt_len, ENC_NA);
	}

	optoff += item_len;
	return optoff;
}

static gboolean
dissect_aerohive_vendor_info_heur(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, void *data)
{
	int offset = 0;
	dhcp_option_data_t *option_data = (dhcp_option_data_t*)data;
	proto_tree* vendor_tree;

	if ((option_data->vendor_class_id == NULL) ||
		(strncmp((const gchar*)option_data->vendor_class_id, AEROHIVE_VCID, strlen(AEROHIVE_VCID)) != 0))
		return FALSE;

	/* Cisco ACI Fabric*/
	proto_item_append_text(tree, " (Aerohive)");
	vendor_tree = proto_item_add_subtree(tree, ett_dhcp_option);

	while (tvb_reported_length_remaining(tvb, offset) > 0) {
		offset = dissect_vendor_aerohive_suboption(pinfo, tree, vendor_tree,
			tvb, offset, tvb_reported_length(tvb));
	}

	return TRUE;
}

static int
dissect_vendor_generic_suboption(packet_info *pinfo, proto_item *v_ti, proto_tree *v_tree,
				 tvbuff_t *tvb, guint32 optoff, guint32 optend)
{
	guint32	    suboptoff = optoff;
	guint8	    subopt;
	guint32	    subopt_len;
	proto_item *item;
	proto_tree *sub_tree;

	item = proto_tree_add_item(v_tree, hf_dhcp_vendor_unknown_suboption, tvb, optoff, 1, ENC_NA);
	subopt = tvb_get_guint8(tvb, optoff);

	suboptoff+=1;

	if (suboptoff >= optend) {
		expert_add_info_format(pinfo, v_ti, &ei_dhcp_missing_subopt_length,
									"Suboption %d: no room left in option for suboption length", subopt);
		return (optend);
	}

	sub_tree = proto_item_add_subtree(item, ett_dhcp_option125_suboption);
	proto_tree_add_item_ret_uint(sub_tree, hf_dhcp_suboption_length, tvb, suboptoff, 1, ENC_NA, &subopt_len);
	suboptoff++;

	if (suboptoff+subopt_len > optend) {
		expert_add_info_format(pinfo, item, &ei_dhcp_missing_subopt_value,
						"Suboption %d: no room left in option for suboption value", subopt);
		return (optend);
	}

	proto_tree_add_item(sub_tree, hf_dhcp_suboption_data, tvb, suboptoff, subopt_len, ENC_NA);
	suboptoff+= subopt_len;

	return suboptoff;

}

static int
dissect_dhcpopt_vi_vendor_specific_info(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, void* data _U_)
{
	guint32 offset = 0;
	guint32 enterprise = 0;
	guint32 s_end = 0;
	guint32 option_data_len = 0;
	proto_item *vti;
	proto_tree *e_tree;

	while (tvb_reported_length_remaining(tvb, offset) >= 5) {

		vti = proto_tree_add_item_ret_uint(tree, hf_dhcp_option125_enterprise, tvb, offset, 4, ENC_BIG_ENDIAN, &enterprise);
		e_tree = proto_item_add_subtree(vti, ett_dhcp_option);
		offset += 4;

		proto_tree_add_item_ret_uint(e_tree, hf_dhcp_option125_length, tvb, offset, 1, ENC_NA, &option_data_len);
		offset += 1;

		s_end = offset + option_data_len;
		if ( tvb_reported_length_remaining(tvb, s_end) < 0 ) {
			expert_add_info_format(pinfo, vti, &ei_dhcp_option125_enterprise_malformed, "no room left in option for enterprise %u data", enterprise);
			break;
		}

		while (offset < s_end) {
			tvbuff_t *enterprise_tvb = tvb_new_subset_length(tvb, offset, option_data_len);
			int bytes_dissected = dissector_try_uint(dhcp_enterprise_table, enterprise, enterprise_tvb, pinfo, e_tree);
			if (bytes_dissected == 0) {
				offset = dissect_vendor_generic_suboption(pinfo, vti, e_tree, tvb, offset, s_end);
			} else{
				offset += bytes_dissected;
			}
		}
	}

	if (tvb_reported_length_remaining(tvb, offset) > 0) {
		expert_add_info_format(pinfo, tree, &ei_dhcp_bad_length, "length < 5");
	}

	return tvb_captured_length(tvb);
}

static const value_string option43_alcatel_suboption_vals[] = {
	{  0, "Padding" },
	{ 58, "Voice VLAN ID" },
	{ 64, "Spatial Redundancy TFTP1" },
	{ 65, "Spatial Redundancy TFTP2" },
	{ 66, "Application Type" },
	{ 67, "SIP URL" },
	{ 255, "Alcatel-Lucent End" },
	{ 0, NULL}
};

static const value_string option43_alcatel_app_type_vals[] = {
	{ 0, "NOE" },
	{ 1, "SIP" },
	{ 0, NULL}
};

/* Look for 'encapsulated vendor-specific options' */
static gboolean
test_encapsulated_vendor_options(tvbuff_t *tvb, int optoff, int optend)
{
	guint8	subopt;
	guint8	subopt_len;

	while (optoff < optend) {
		subopt = tvb_get_guint8(tvb, optoff);
		optoff++;

		/* Skip padding */
		if (subopt == 0)
			continue;
		/* We are done, skip any remaining bytes */
		if (subopt == 255)
			break;

		/* We expect a length byte next */
		if (optoff >= optend)
			return FALSE;
		subopt_len = tvb_get_guint8(tvb, optoff);
		optoff++;

		/* Check remaining room for suboption in option */
		if (optoff + subopt_len > optend)
			return FALSE;
		optoff += subopt_len;
	}
	return TRUE;
}

static int
dissect_vendor_alcatel_suboption(packet_info *pinfo, proto_item *v_ti, proto_tree *v_tree,
				 tvbuff_t *tvb, int optoff, int optend)
{
	int	    suboptoff = optoff;
	guint8	    subopt;
	guint8	    subopt_len;
	proto_item *vti;
	proto_tree *o43alcatel_v_tree;

	subopt = tvb_get_guint8(tvb, optoff);
	suboptoff++;

	if (subopt == 0) {
		proto_tree_add_item(v_tree, hf_dhcp_option43_alcatel_padding, tvb, optoff, 1, ENC_BIG_ENDIAN);
		return (suboptoff);
	} else if (subopt == 255) {	/* End Option */
		proto_tree_add_item(v_tree, hf_dhcp_option43_alcatel_end, tvb, optoff, 1, ENC_BIG_ENDIAN);
		/* Make sure we skip any junk left this option */
		return (optend);
	}

	if (suboptoff >= optend) {
		expert_add_info_format(pinfo, v_ti, &ei_dhcp_missing_subopt_length,
									"Suboption %d: no room left in option for suboption length", subopt);
		return (optend);
	}

	subopt_len = tvb_get_guint8(tvb, suboptoff);
	vti = proto_tree_add_uint_format_value(v_tree, hf_dhcp_option43_alcatel_suboption,
				tvb, optoff, subopt_len+2, subopt, "(%d) %s",
				subopt, val_to_str_const(subopt, option43_alcatel_suboption_vals, "Unknown"));

	o43alcatel_v_tree = proto_item_add_subtree(vti, ett_dhcp_option43_suboption);
	proto_tree_add_item(o43alcatel_v_tree, hf_dhcp_suboption_length, tvb, suboptoff, 1, ENC_BIG_ENDIAN);
	suboptoff++;

	if (suboptoff+subopt_len > optend) {
		expert_add_info_format(pinfo, vti, &ei_dhcp_missing_subopt_value,
						"Suboption %d: no room left in option for suboption value", subopt);
		return (optend);
	}

	switch (subopt)
	{
	case 58: /* 0x3A - Alcatel-Lucent AVA VLAN Id */
		if (subopt_len != 2) {
			expert_add_info_format(pinfo, vti, &ei_dhcp_bad_length, "length isn't 2");
			return (optend);
		}

		proto_tree_add_item(o43alcatel_v_tree, hf_dhcp_option43_alcatel_vlan_id, tvb, suboptoff, 2, ENC_BIG_ENDIAN);
		break;
	case 64: /* 0x40 - Alcatel-Lucent TFTP1 */
		if (subopt_len != 4) {
			expert_add_info_format(pinfo, vti, &ei_dhcp_bad_length, "length isn't 4");
			return (optend);
		}

		proto_tree_add_item(o43alcatel_v_tree, hf_dhcp_option43_alcatel_tftp1, tvb, suboptoff, 4, ENC_BIG_ENDIAN);
		break;
	case 65: /* 0x41 - Alcatel-Lucent TFTP2 */
		if (subopt_len != 4) {
			expert_add_info_format(pinfo, vti, &ei_dhcp_bad_length, "length isn't 4");
			return (optend);
		}

		proto_tree_add_item(o43alcatel_v_tree, hf_dhcp_option43_alcatel_tftp2, tvb, suboptoff, 4, ENC_BIG_ENDIAN);
		break;
	case 66: /* 0x42 - Alcatel-Lucent APPLICATION TYPE */
		if (subopt_len != 1) {
			expert_add_info_format(pinfo, vti, &ei_dhcp_bad_length, "length isn't 1");
			return (optend);
		}
		proto_tree_add_item(o43alcatel_v_tree, hf_dhcp_option43_alcatel_app_type, tvb, suboptoff, 1, ENC_BIG_ENDIAN);
		break;
	case 67: /* 0x43 - Alcatel-Lucent SIP URL */
		proto_tree_add_item(o43alcatel_v_tree, hf_dhcp_option43_alcatel_sip_url, tvb, suboptoff, subopt_len, ENC_ASCII);
		break;
	default:
		expert_add_info_format(pinfo, vti, &hf_dhcp_subopt_unknown_type, "ERROR, please report: Unknown subopt type handler %d", subopt);
		return optend;
	}

	optoff += (subopt_len + 2);
	return optoff;
}

static gboolean
dissect_alcatel_lucent_vendor_info_heur( tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, void *data _U_)
{
	int offset = 0;
	guint8 s_option;
	proto_tree* vendor_tree;

	if (tvb_reported_length(tvb) < 1)
		return FALSE;

	s_option = tvb_get_guint8(tvb, offset);
	if ((s_option==58 || s_option==64 || s_option==65
		|| s_option==66 || s_option==67)
		&& test_encapsulated_vendor_options(tvb, offset, tvb_reported_length(tvb))) {

		/* Alcatel-Lucent DHCP Extensions */
		proto_item_append_text(tree, " (Alcatel-Lucent)");
		vendor_tree = proto_item_add_subtree(tree, ett_dhcp_option);

		while (tvb_reported_length_remaining(tvb, offset) > 0) {
			offset = dissect_vendor_alcatel_suboption(pinfo, tree, vendor_tree,
				tvb, offset, tvb_reported_length(tvb));
		}
		return TRUE;
	}

	return FALSE;
}

static const value_string option63_suboption_vals[] = {
	{ 1, "NWIP does not exist on subnet" },
	{ 2, "NWIP exists in options area" },
	{ 3, "NWIP exists in sname/file" },
	{ 4, "NWIP exists, but too big" },
	{ 5, "Broadcast for nearest Netware server" },
	{ 6, "Preferred DSS server" },
	{ 7, "Nearest NWIP server" },
	{ 8, "Autoretries" },
	{ 9, "Autoretry delay, secs" },
	{ 10, "Support NetWare/IP v1.1" },
	{ 11, "Primary DSS" },
	{ 0, NULL }
};

static int
dissect_netware_ip_suboption(packet_info *pinfo, proto_item *v_ti, proto_tree *v_tree,
			     tvbuff_t *tvb, int optoff, int optend)
{
	int	    suboptoff = optoff;
	guint8	    subopt, subopt_len;
	proto_tree *o63_v_tree;
	proto_item *vti, *ti;

	struct basic_types_hfs default_hfs = {
		NULL,
		&hf_dhcp_option63_value_ip_address,
		&hf_dhcp_option63_value_ip_address,
		NULL,
		&hf_dhcp_option63_value_boolean,
		&hf_dhcp_option63_value_8,
		NULL,
		NULL,
		NULL,
		NULL,
		NULL
	};

	static struct opt_info o63_opt[]= {
		/* 0 */ {"",none,NULL},
		/* 1 */ {"NWIP does not exist on subnet",presence,NULL},
		/* 2 */ {"NWIP exists in options area",presence,NULL},
		/* 3 */ {"NWIP exists in sname/file",presence,NULL},
		/* 4 */ {"NWIP exists, but too big",presence,NULL},
		/* 5 */ {"Broadcast for nearest Netware server",val_boolean, &hf_dhcp_option63_broadcast},
		/* 6 */ {"Preferred DSS server",ipv4_list,&hf_dhcp_option63_preferred_dss_server},
		/* 7 */ {"Nearest NWIP server",ipv4_list,&hf_dhcp_option63_nearest_nwip_server},
		/* 8 */ {"Autoretries",val_u_byte,&hf_dhcp_option63_autoretries},
		/* 9 */ {"Autoretry delay, secs",val_u_byte,&hf_dhcp_option63_autoretry_delay},
		/* 10*/ {"Support NetWare/IP v1.1",val_boolean,&hf_dhcp_option63_support_netware_v1_1},
		/* 11*/ {"Primary DSS",ipv4,&hf_dhcp_option63_primary_dss}
	};

	subopt = tvb_get_guint8(tvb, optoff);
	suboptoff++;

	if (suboptoff >= optend) {
		expert_add_info_format(pinfo, v_ti, &ei_dhcp_missing_subopt_length,
									"Suboption %d: no room left in option for suboption length", subopt);
		return (optend);
	}

	subopt_len = tvb_get_guint8(tvb, suboptoff);
	vti = proto_tree_add_uint_format_value(v_tree, hf_dhcp_option63_suboption,
				tvb, optoff, subopt_len+2, subopt, "(%d) %s",
				subopt, val_to_str_const(subopt, option63_suboption_vals, "Unknown"));

	o63_v_tree = proto_item_add_subtree(vti, ett_dhcp_option63_suboption);
	proto_tree_add_item(o63_v_tree, hf_dhcp_suboption_length, tvb, suboptoff, 1, ENC_BIG_ENDIAN);
	suboptoff++;

	ti = proto_tree_add_item(o63_v_tree, hf_dhcp_option63_value, tvb, suboptoff, subopt_len, ENC_NA);
	proto_item_set_hidden(ti);

	if (subopt < array_length(o63_opt)) {
		if (dhcp_handle_basic_types(pinfo, o63_v_tree, vti, tvb, o63_opt[subopt].ftype,
							suboptoff, subopt_len, o63_opt[subopt].phf, &default_hfs) == 0) {
			switch(o63_opt[subopt].ftype)
			{
			case presence:
				if (subopt_len != 0) {
					expert_add_info_format(pinfo, vti, &ei_dhcp_bad_length, "length isn't 0");
				}
				break;
			default:
				if (o63_opt[subopt].phf == NULL)
					proto_tree_add_item(o63_v_tree, hf_dhcp_option63_value, tvb, suboptoff, subopt_len, ENC_NA);
				break;
			}
		}
	}
	optoff += (subopt_len + 2);
	return optoff;
}

static int
dissect_dhcpopt_netware_ip(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, void* data _U_)
{
	int offset = 0;

	while (tvb_reported_length_remaining(tvb, offset) > 0) {
		offset = dissect_netware_ip_suboption(pinfo, tree, tree, tvb, offset, tvb_reported_length(tvb));
	}

	return tvb_captured_length(tvb);
}

static const value_string option125_tr111_suboption_vals[] = {
	{ 1, "DeviceManufacturerOUI" },
	{ 2, "DeviceSerialNumber" },
	{ 3, "DeviceProductClass" },
	{ 4, "GatewayManufacturerOUI" },
	{ 5, "GatewaySerialNumber" },
	{ 6, "GatewayProductClass" },
	{ 0, NULL }
};

static int
dissect_vendor_tr111_suboption(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, void* data _U_)
{
	int offset = 0;
	proto_tree *o125_v_tree;
	proto_item *vti, *ti;
	guint8 subopt, subopt_len;

	struct basic_types_hfs default_hfs = {
		NULL,
		NULL,
		NULL,
		&hf_dhcp_option125_value_stringz,
		NULL,
		NULL,
		NULL,
		NULL,
		NULL,
		NULL,
		NULL
	};

	/* Reference: TR-111 DHCP Option 125 Sub-Option Data Fields
	   Page 10.
	*/

	static struct opt_info o125_tr111_opt[]= {
		/* 0 */ {"nop", special, NULL},	/* dummy */
		/* 1 */ {"DeviceManufacturerOUI",  oui,    &hf_dhcp_option125_tr111_device_manufacturer_oui},
		/* 2 */ {"DeviceSerialNumber",     string, &hf_dhcp_option125_tr111_device_serial_number},
		/* 3 */ {"DeviceProductClass",     string, &hf_dhcp_option125_tr111_device_product_class},
		/* 4 */ {"GatewayManufacturerOUI", string, &hf_dhcp_option125_tr111_gateway_manufacturer_oui},
		/* 5 */ {"GatewaySerialNumber",    string, &hf_dhcp_option125_tr111_gateway_serial_number},
		/* 6 */ {"GatewayProductClass",    string, &hf_dhcp_option125_tr111_gateway_product_class},
	};

	subopt = tvb_get_guint8(tvb, offset);
	offset++;

	if (tvb_reported_length_remaining(tvb, offset) < 1) {
		expert_add_info_format(pinfo, tree, &ei_dhcp_missing_subopt_length,
				       "Suboption %d: no room left in option for suboption length", subopt);
		return offset;
	}

	subopt_len = tvb_get_guint8(tvb, offset);
	vti = proto_tree_add_uint_format_value(tree, hf_dhcp_option125_tr111_suboption,
				tvb, offset, subopt_len+2, subopt, "(%d) %s",
				subopt, val_to_str_const(subopt, option125_tr111_suboption_vals, "Unknown"));

	o125_v_tree = proto_item_add_subtree(vti, ett_dhcp_option125_tr111_suboption);
	proto_tree_add_item(o125_v_tree, hf_dhcp_suboption_length, tvb, offset, 1, ENC_BIG_ENDIAN);
	offset++;

	if (tvb_reported_length_remaining(tvb, offset) < subopt_len) {
		expert_add_info_format(pinfo, vti, &ei_dhcp_missing_subopt_value,
						"Suboption %d: no room left in option for suboption value", subopt);
		return offset;
	}

	ti = proto_tree_add_item(tree, hf_dhcp_option125_value, tvb, offset, subopt_len, ENC_NA);
	proto_item_set_hidden(ti);

	if (subopt < array_length(o125_tr111_opt)) {
		if (dhcp_handle_basic_types(pinfo, o125_v_tree, vti, tvb, o125_tr111_opt[subopt].ftype, offset, subopt_len, o125_tr111_opt[subopt].phf, &default_hfs) == 0) {
			if (o125_tr111_opt[subopt].ftype == special) {
				if (o125_tr111_opt[subopt].phf != NULL)
				   proto_tree_add_item(o125_v_tree, *o125_tr111_opt[subopt].phf, tvb, offset, subopt_len, ENC_BIG_ENDIAN);
				else
				   proto_tree_add_item(o125_v_tree, hf_dhcp_option125_value, tvb, offset, subopt_len, ENC_NA);
			}
			else if (o125_tr111_opt[subopt].ftype == oui) {
				/* Get hex string.  Expecting 6 characters. */
				const gchar   *oui_string =  (gchar *)tvb_get_string_enc(pinfo->pool, tvb, offset, subopt_len, ENC_ASCII);
				/* Convert to OUI number.  Only 3 bytes so no data lost in downcast. */
				guint32 oui_number = (guint32)strtol(oui_string, NULL, 16);
				/* Add item using oui_vals */
				proto_tree_add_uint(o125_v_tree, *o125_tr111_opt[subopt].phf, tvb, offset, subopt_len, oui_number);
			} else if (o125_tr111_opt[subopt].phf == NULL)
				proto_tree_add_item(o125_v_tree, hf_dhcp_option125_value, tvb, offset, subopt_len, ENC_NA);
		}
	}

	return subopt_len + 2;
}

static const value_string option125_cl_suboption_vals[] = {
	{ 1, "Option Request" },
	{ 2, "TFTP Server Addresses" },
	{ 3, "eRouter Container Option" },
	{ 4, "MIB Environment Indicator Option" },
	{ 5, "Modem Capabilities" },
	{ 0, NULL }
};

static const value_string pkt_mib_env_ind_opt_vals[] = {
	{ 0x00, "Reserved" },
	{ 0x01, "CableLabs" },
	{ 0x02, "IETF" },
	{ 0x03, "EuroCableLabs" },
	{ 0, NULL }
};

static int
dissect_vendor_cl_suboption(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, void* data _U_)
{
	int offset = 0;
	guint8 subopt, subopt_len;
	proto_tree *o125_v_tree;
	proto_item *vti;

	struct basic_types_hfs default_hfs = {
		&hf_dhcp_option125_value,
		&hf_dhcp_option125_value_ip_address,
		&hf_dhcp_option125_value_ip_address,
		&hf_dhcp_option125_value_stringz,
		NULL,
		&hf_dhcp_option125_value_8,
		&hf_dhcp_option125_value_16,
		NULL,
		NULL,
		NULL,
		NULL
	};

	static struct opt_info o125_cl_opt[]= {
		/* 0 */ {"nop", special, NULL},	/* dummy */
		/* 1 */ {"Option Request = ", bytes, &hf_dhcp_option125_cl_option_request},
		/* 2 */ {"TFTP Server Addresses : ", ipv4_list, &hf_dhcp_option125_cl_tftp_server_addresses},
		/* 3 */ {"eRouter Container Option : ", bytes, &hf_dhcp_option125_cl_erouter_container_option},
		/* 4 */ {"MIB Environment Indicator Option = ", val_u_byte, &hf_dhcp_option125_cl_mib_environment_indicator_option},
		/* 5 */ {"Modem Capabilities : ", special, &hf_dhcp_option125_cl_modem_capabilities},
	};

	subopt = tvb_get_guint8(tvb, offset);
	offset++;

	if (tvb_reported_length_remaining(tvb, offset) < 1) {
		expert_add_info_format(pinfo, tree, &ei_dhcp_missing_subopt_length,
									"Suboption %d: no room left in option for suboption length", subopt);
		return offset;
	}

	subopt_len = tvb_get_guint8(tvb, offset);
	vti = proto_tree_add_uint_format_value(tree, hf_dhcp_option125_cl_suboption,
				tvb, offset, subopt_len+2, subopt, "(%d) %s",
				subopt, val_to_str_const(subopt, option125_cl_suboption_vals, "Unknown"));

	o125_v_tree = proto_item_add_subtree(vti, ett_dhcp_option125_cl_suboption);
	proto_tree_add_item(o125_v_tree, hf_dhcp_suboption_length, tvb, offset, 1, ENC_BIG_ENDIAN);
	offset++;

	if (tvb_reported_length_remaining(tvb, offset) < subopt_len) {
		expert_add_info_format(pinfo, vti, &ei_dhcp_missing_subopt_value,
						"Suboption %d: no room left in option for suboption value", subopt);
		return offset;
	}

	if (subopt < array_length(o125_cl_opt)) {
		if (dhcp_handle_basic_types(pinfo, o125_v_tree, vti, tvb, o125_cl_opt[subopt].ftype,
							offset, subopt_len, o125_cl_opt[subopt].phf, &default_hfs) == 0) {

			switch(o125_cl_opt[subopt].ftype) {
			case special:
				if (o125_cl_opt[subopt].phf != NULL)
					proto_tree_add_item(o125_v_tree, *o125_cl_opt[subopt].phf, tvb, offset, subopt_len, ENC_BIG_ENDIAN);
				else
					proto_tree_add_item(o125_v_tree, hf_dhcp_option125_value, tvb, offset, subopt_len, ENC_NA);
				switch(subopt){
					case 5: /* Modem Capabilities */
						dissect_docsis_cm_cap(pinfo, o125_v_tree, tvb, offset-2, subopt_len+2, TRUE);
					break;
				}
				break;
			default:
				if (o125_cl_opt[subopt].phf == NULL)
					proto_tree_add_item(o125_v_tree, hf_dhcp_option125_value, tvb, offset, subopt_len, ENC_NA);
				break;
			}
		}
	}

	return subopt_len + 2;
}

/* PacketCable Multimedia Terminal Adapter device capabilities (option 60).
   Ref: PKT-SP-I05-021127 sections 8.2 and 10 */

#define PKT_MDC_TLV_OFF 10


/* These are ASCII-encoded hexadecimal digits.	We use the raw hex equivalent for
   convenience. */
#define PKT_MDC_VERSION			0x3031	/* "01" */
#define PKT_MDC_TEL_END			0x3032	/* "02" */
#define PKT_MDC_TGT			0x3033	/* "03" */
#define PKT_MDC_HTTP_ACC		0x3034	/* "04" */
#define PKT_MDC_SYSLOG			0x3035	/* "05" */
#define PKT_MDC_NCS			0x3036	/* "06" */
#define PKT_MDC_PRI_LINE		0x3037	/* "07" */
#define PKT_MDC_VENDOR_TLV		0x3038	/* "08" */
#define PKT_MDC_NVRAM_STOR		0x3039	/* "09" */
#define PKT_MDC_PROV_REP		0x3041	/* "0A" */
#define PKT_MDC_PROV_REP_LC		0x3061	/* "0a" */
#define PKT_MDC_SUPP_CODECS		0x3042	/* "0B" */
#define PKT_MDC_SUPP_CODECS_LC		0x3062	/* "0b" */
#define PKT_MDC_SILENCE			0x3043	/* "0C" */
#define PKT_MDC_SILENCE_LC		0x3063	/* "0c" */
#define PKT_MDC_ECHO_CANCEL		0x3044	/* "0D" */
#define PKT_MDC_ECHO_CANCEL_LC		0x3064	/* "0d" */
#define PKT_MDC_RSVP			0x3045	/* "0E" */
#define PKT_MDC_RSVP_LC			0x3065	/* "0e" */
#define PKT_MDC_UGS_AD			0x3046	/* "0F" */
#define PKT_MDC_UGS_AD_LC		0x3066	/* "0f" */
#define PKT_MDC_IF_INDEX		0x3130	/* "10" */
#define PKT_MDC_FLOW_LOG		0x3131	/* "11" */
#define PKT_MDC_PROV_FLOWS		0x3132	/* "12" */
/* PacketCable 1.5: */
#define PKT_MDC_T38_VERSION		0x3133	/* "13" */
#define	PKT_MDC_T38_EC			0x3134	/* "14" */
#define	PKT_MDC_RFC2833_DTMF		0x3135	/* "15" */
#define PKT_MDC_VOICE_METRICS		0x3136	/* "16" */
#define	PKT_MDC_MIBS			0x3137	/* "17" */
#define	PKT_MDC_MGPI			0x3138	/* "18" */
#define	PKT_MDC_V152			0x3139	/* "19" */
#define	PKT_MDC_CBS			0x3141	/* "1A" */
#define	PKT_MDC_CBS_LC			0x3161	/* "1a" */

static const value_string pkt_mdc_type_vals[] = {
	{ PKT_MDC_VERSION,		"PacketCable Version" },
	{ PKT_MDC_TEL_END,		"Number Of Telephony Endpoints" },
	{ PKT_MDC_TGT,			"TGT Support" },
	{ PKT_MDC_HTTP_ACC,		"HTTP Download File Access Method Support" },
	{ PKT_MDC_SYSLOG,		"MTA-24 Event SYSLOG Notification Support" },
	{ PKT_MDC_NCS,			"NCS Service Flow Support" },
	{ PKT_MDC_PRI_LINE,		"Primary Line Support" },
	{ PKT_MDC_VENDOR_TLV,		"Vendor Specific TLV Type(s)" },
	{ PKT_MDC_NVRAM_STOR,		"NVRAM Ticket/Session Keys Storage Support" },
	{ PKT_MDC_PROV_REP,		"Provisioning Event Reporting Support" },
	{ PKT_MDC_PROV_REP_LC,		"Provisioning Event Reporting Support" },
	{ PKT_MDC_SUPP_CODECS,		"Supported CODEC(s)" },
	{ PKT_MDC_SUPP_CODECS_LC,	"Supported CODEC(s)" },
	{ PKT_MDC_SILENCE,		"Silence Suppression Support" },
	{ PKT_MDC_SILENCE_LC,		"Silence Suppression Support" },
	{ PKT_MDC_ECHO_CANCEL,		"Echo Cancellation Support" },
	{ PKT_MDC_ECHO_CANCEL_LC,	"Echo Cancellation Support" },
	{ PKT_MDC_RSVP,			"RSVP Support/ Reserved" },
	{ PKT_MDC_RSVP_LC,		"RSVP Support/ Reserved" },
	{ PKT_MDC_UGS_AD,		"UGS-AD Support" },
	{ PKT_MDC_UGS_AD_LC,		"UGS-AD Support" },
	{ PKT_MDC_IF_INDEX,		"MTA's \"ifIndex\" starting number in \"ifTable\"" },
	{ PKT_MDC_FLOW_LOG,		"Provisioning Flow Logging Support" },
	{ PKT_MDC_PROV_FLOWS,		"Supported Provisioning Flows" },
	/* PacketCable 1.5: */
	{ PKT_MDC_T38_VERSION,		"T38 Version Support" },
	{ PKT_MDC_T38_EC,		"T38 Error Correction Support" },
	{ PKT_MDC_RFC2833_DTMF,		"RFC 2833 DTMF Support" },
	{ PKT_MDC_VOICE_METRICS,	"Voice Metrics Support" },
	{ PKT_MDC_MIBS,			"MIB Support" },
	{ PKT_MDC_MGPI,			"Multiple Grants Per Interval Support" },
	{ PKT_MDC_V152,			"V.152 Support" },
	/* PacketCable 2.0: */
	{ PKT_MDC_CBS,			"Certificate Bootstrapping Support" },
	{ PKT_MDC_CBS_LC,		"Certificate Bootstrapping Support" },
	{ 0,				NULL }
};

static const value_string pkt_mdc_version_vals[] = {
	{ 0x3030,	"PacketCable 1.0" },
	{ 0x3031,	"PacketCable 1.1/1.5" }, /* 1.5 replaces 1.1-1.3 */
	{ 0x3032,	"PacketCable 2.0" },
	{ 0,		NULL }
};

static const value_string pkt_mdc_boolean_vals[] = {
	{ 0x3030,	"No" },
	{ 0x3031,	"Yes" },
	{ 0,		NULL }
};

static const value_string pkt_mdc_codec_vals[] = {
	{ 0x3031,	"other" },	     /* "01" */
	{ 0x3032,	"unknown" },
	{ 0x3033,	"G.729" },
	{ 0x3034,	"reserved" },
	{ 0x3035,	"G.729E" },
	{ 0x3036,	"PCMU" },
	{ 0x3037,	"G.726-32" },
	{ 0x3038,	"G.728" },
	{ 0x3039,	"PCMA" },	     /* "09" */
	{ 0x3041,	"G.726-16" },	     /* "0A" */
	{ 0x3042,	"G.726-24" },
	{ 0x3043,	"G.726-40" },
	{ 0x3044,	"iLBC" },
	{ 0x3045,	"BV16" },
	{ 0x3046,	"telephone-event" }, /* "0F" */
	{ 0,		NULL }
};

static const value_string pkt_mdc_t38_version_vals[] = {
	{ 0x3030,	"Unsupported" },
	{ 0x3031,	"T.38 Version Zero" }, /* default */
	{ 0x3032,	"T.38 Version One" },
	{ 0x3033,	"T.38 Version Two" },
	{ 0x3035,	"T.38 Version Three" },
	{ 0,		NULL }
};

static const value_string pkt_mdc_t38_ec_vals[] = {
	{ 0x3030,	"None" },
	{ 0x3031,	"Redundancy" }, /* default */
	{ 0x3032,	"FEC" },
	{ 0,		NULL }
};

static const value_string pkt_mdc_mib_orgs[] = {
	{ 0x3030,	"CableLabs" },
	{ 0x3031,	"IETF" },
	{ 0x3032,	"EuroCableLabs" },
	{ 0x3033,	"Reserved" },
	{ 0x3034,	"Reserved" },
	{ 0x3035,	"Reserved" },
	{ 0x3036,	"Reserved" },
	{ 0x3037,	"Reserved" },
	{ 0x3038,	"Reserved" },
	{ 0x3039,	"Reserved" },
	{ 0,		NULL }
};

static int hf_dhcp_pkt_mdc_supp_flow_secure = -1;
static int hf_dhcp_pkt_mdc_supp_flow_hybrid = -1;
static int hf_dhcp_pkt_mdc_supp_flow_basic = -1;

#define PKT_MDC_MIB_CL 0x3030
static int hf_dhcp_pkt_mdc_mib_cl_mta = -1;
static int hf_dhcp_pkt_mdc_mib_cl_signaling = -1;
static int hf_dhcp_pkt_mdc_mib_cl_management_event = -1;
static int hf_dhcp_pkt_mdc_mib_cl_mta_extension = -1;
static int hf_dhcp_pkt_mdc_mib_cl_mta_signaling_extension = -1;
static int hf_dhcp_pkt_mdc_mib_cl_mta_mem_extension = -1;
static int hf_dhcp_pkt_mdc_mib_cl_reserved = -1;

#define PKT_MDC_MIB_IETF 0x3031
static int hf_dhcp_pkt_mdc_mib_ietf_mta = -1;
static int hf_dhcp_pkt_mdc_mib_ietf_signaling = -1;
static int hf_dhcp_pkt_mdc_mib_ietf_management_event = -1;
static int hf_dhcp_pkt_mdc_mib_ietf_reserved = -1;

#define PKT_MDC_MIB_EURO 0x3032
static int hf_dhcp_pkt_mdc_mib_euro_mta = -1;
static int hf_dhcp_pkt_mdc_mib_euro_signaling = -1;
static int hf_dhcp_pkt_mdc_mib_euro_management_event = -1;
static int hf_dhcp_pkt_mdc_mib_euro_mta_extension = -1;
static int hf_dhcp_pkt_mdc_mib_euro_mta_signaling_extension = -1;
static int hf_dhcp_pkt_mdc_mib_euro_mta_mem_extension = -1;
static int hf_dhcp_pkt_mdc_mib_euro_reserved = -1;


static void
dissect_packetcable_mta_cap(proto_tree *v_tree, packet_info *pinfo, tvbuff_t *tvb, int voff, int len)
{
	guint16	       raw_val;
	guint32	flow_val	  = 0;
	int		   off	  = PKT_MDC_TLV_OFF + voff;
	int		   subopt_off, max_len;
	guint	       tlv_len, i, mib_val;
	guint8	       flow_val_str[5];
	guint8        *asc_val;
	proto_item    *ti, *mib_ti;
	proto_tree    *subtree, *subtree2;

	asc_val = tvb_get_string_enc(pinfo->pool, tvb, off, 2, ENC_ASCII);
	if (sscanf((gchar*)asc_val, "%x", &tlv_len) != 1 || tlv_len > 0xff) {
		proto_tree_add_expert_format(v_tree, pinfo, &ei_dhcp_bad_length, tvb, off, len - off,
			"Bogus length: %s",
			format_text_string(pinfo->pool, asc_val));
		return;
	} else {
		proto_tree_add_uint(v_tree, hf_dhcp_pkt_mta_cap_len, tvb, off, 2, tlv_len);
		off += 2;

		while (off - voff < len) {
			/* Type */
			raw_val = tvb_get_ntohs (tvb, off);

			/* Length */
			asc_val = tvb_get_string_enc(pinfo->pool, tvb, off + 2, 2, ENC_ASCII);
			if (sscanf((gchar*)asc_val, "%x", &tlv_len) != 1
			    || tlv_len < 1 || tlv_len > G_MAXUINT16) {
				proto_tree_add_expert_format(v_tree, pinfo, &ei_dhcp_bad_length, tvb, off, len - off,
					"Bogus length: %s",
					format_text_string(pinfo->pool, asc_val));
				return;
			} else {
				/* Value(s) */

				ti = proto_tree_add_uint_format(v_tree, hf_dhcp_pkt_mta_cap_type,
				    tvb, off, 2, raw_val, "0x%s: %s = ",
				    tvb_format_text(pinfo->pool, tvb, off, 2),
				    val_to_str_const(raw_val, pkt_mdc_type_vals, "unknown"));
				proto_item_set_len(ti, (tlv_len * 2) + 4);
				switch (raw_val) {

				case PKT_MDC_VERSION:
					raw_val = tvb_get_ntohs(tvb, off + 4);
					proto_item_append_text(ti,
							       "%s (%s)",
							       val_to_str_const(raw_val, pkt_mdc_version_vals, "Reserved"),
							       tvb_format_stringzpad(pinfo->pool, tvb, off + 4, 2) );
					break;

				case PKT_MDC_TEL_END:
				case PKT_MDC_IF_INDEX:
					proto_item_append_text(ti,
							       "%s",
							       tvb_format_stringzpad(pinfo->pool, tvb, off + 4, 2) );
					break;

				case PKT_MDC_TGT:
				case PKT_MDC_HTTP_ACC:
				case PKT_MDC_SYSLOG:
				case PKT_MDC_NCS:
				case PKT_MDC_PRI_LINE:
				case PKT_MDC_NVRAM_STOR:
				case PKT_MDC_PROV_REP:
				case PKT_MDC_PROV_REP_LC:
				case PKT_MDC_SILENCE:
				case PKT_MDC_SILENCE_LC:
				case PKT_MDC_ECHO_CANCEL:
				case PKT_MDC_ECHO_CANCEL_LC:
				case PKT_MDC_RSVP:
				case PKT_MDC_RSVP_LC:
				case PKT_MDC_UGS_AD:
				case PKT_MDC_UGS_AD_LC:
				case PKT_MDC_FLOW_LOG:
				case PKT_MDC_RFC2833_DTMF:
				case PKT_MDC_VOICE_METRICS:
				case PKT_MDC_MGPI:
				case PKT_MDC_V152:
				case PKT_MDC_CBS:
				case PKT_MDC_CBS_LC:
					raw_val = tvb_get_ntohs(tvb, off + 4);
					proto_item_append_text(ti,
							       "%s (%s)",
							       val_to_str_const(raw_val, pkt_mdc_boolean_vals, "unknown"),
							       tvb_format_stringzpad(pinfo->pool, tvb, off + 4, 2) );
					break;

				case PKT_MDC_SUPP_CODECS:
				case PKT_MDC_SUPP_CODECS_LC:
					for (i = 0; i < tlv_len; i++) {
						raw_val = tvb_get_ntohs(tvb, off + 4 + (i * 2) );
						proto_item_append_text(ti,
								       "%s%s (%s)",
								       plurality(i + 1, "", ", "),
								       val_to_str_const(raw_val, pkt_mdc_codec_vals, "unknown"),
								       tvb_format_stringzpad(pinfo->pool, tvb, off + 4 + (i * 2), 2) );
					}
					break;

				case PKT_MDC_PROV_FLOWS:
					tvb_memcpy(tvb, flow_val_str, off + 4, 4);
					flow_val_str[4] = '\0';
					/* We are only reading 4 digits which should fit in 32 bits */
					flow_val = (guint32)strtoul((gchar*)flow_val_str, NULL, 16);
					proto_item_append_text(ti,
							       "0x%04x", flow_val);
					break;

				case PKT_MDC_T38_VERSION:
					raw_val = tvb_get_ntohs(tvb, off + 4);
					proto_item_append_text(ti,
							       "%s (%s)",
							       val_to_str_const(raw_val, pkt_mdc_t38_version_vals, "unknown"),
							       tvb_format_stringzpad(pinfo->pool, tvb, off + 4, 2) );
					break;

				case PKT_MDC_T38_EC:
					raw_val = tvb_get_ntohs(tvb, off + 4);
					proto_item_append_text(ti,
							       "%s (%s)",
							       val_to_str_const(raw_val, pkt_mdc_t38_ec_vals, "unknown"),
							       tvb_format_stringzpad(pinfo->pool, tvb, off + 4, 2) );
					break;

				case PKT_MDC_MIBS:
					break;

				case PKT_MDC_VENDOR_TLV:
				default:
					proto_item_append_text(ti,
							       "%s",
							       tvb_format_stringzpad(pinfo->pool, tvb, off + 4, tlv_len * 2) );
					break;
				}
			}
			subtree = proto_item_add_subtree(ti, ett_dhcp_option);
			if (raw_val == PKT_MDC_PROV_FLOWS) {
				static int * const flows[] = {
					&hf_dhcp_pkt_mdc_supp_flow_secure,
					&hf_dhcp_pkt_mdc_supp_flow_hybrid,
					&hf_dhcp_pkt_mdc_supp_flow_basic,
					NULL
				};

				proto_tree_add_bitmask_list_value(subtree, tvb, off + 4, 4, flows, flow_val);
			} else if (raw_val == PKT_MDC_MIBS) {
			/* 17 06 02 00 38 02 01 07 */
				subopt_off = off + 4;
				max_len = subopt_off + (tlv_len * 2);
				while (subopt_off < max_len) {
					raw_val = tvb_get_ntohs(tvb, subopt_off);
					if (raw_val != 0x3032) { /* We only know how to handle a length of 2 */
						asc_val = tvb_get_string_enc(pinfo->pool, tvb, subopt_off, 2, ENC_ASCII);
						proto_tree_add_expert_format(subtree, pinfo, &ei_dhcp_bad_length, tvb, subopt_off, 2,
							"Bogus length: %s",
							format_text_string(pinfo->pool, asc_val));
						return;
					}

					subopt_off += 2;
					raw_val = tvb_get_ntohs(tvb, subopt_off);
					asc_val = tvb_get_string_enc(pinfo->pool, tvb, subopt_off, 2, ENC_ASCII);
					subtree2 = proto_tree_add_subtree_format(subtree, tvb, subopt_off, 2,
						ett_dhcp_option, &mib_ti, "%s (%s)",
						val_to_str_const(raw_val, pkt_mdc_mib_orgs, "Unknown"),
						format_text_string(pinfo->pool, asc_val));
					if (subopt_off > off + 4 + 2) {
						proto_item_append_text(ti, ", ");
					}
					proto_item_append_text(ti, "%s", val_to_str_const(raw_val, pkt_mdc_mib_orgs, "Unknown"));

					subopt_off += 2;
					asc_val = tvb_get_string_enc(pinfo->pool, tvb, subopt_off, 2, ENC_ASCII);
					if (sscanf((gchar*)asc_val, "%x", &mib_val) != 1) {
						proto_tree_add_expert_format(v_tree, pinfo, &ei_dhcp_bad_bitfield, tvb, subopt_off, 2,
							"Bogus bitfield: %s", format_text_string(pinfo->pool, asc_val));
						return;
					}
					switch (raw_val) {

					case PKT_MDC_MIB_CL: {
						static int * const cl_flags[] = {
							&hf_dhcp_pkt_mdc_mib_cl_mta,
							&hf_dhcp_pkt_mdc_mib_cl_signaling,
							&hf_dhcp_pkt_mdc_mib_cl_management_event,
							&hf_dhcp_pkt_mdc_mib_cl_mta_extension,
							&hf_dhcp_pkt_mdc_mib_cl_mta_signaling_extension,
							&hf_dhcp_pkt_mdc_mib_cl_mta_mem_extension,
							&hf_dhcp_pkt_mdc_mib_cl_reserved,
							NULL
						};

						proto_tree_add_bitmask_list_value(subtree2, tvb, subopt_off, 2, cl_flags, mib_val);
						}
						break;

					case PKT_MDC_MIB_IETF: {
						static int * const ietf_flags[] = {
							&hf_dhcp_pkt_mdc_mib_ietf_mta,
							&hf_dhcp_pkt_mdc_mib_ietf_signaling,
							&hf_dhcp_pkt_mdc_mib_ietf_management_event,
							&hf_dhcp_pkt_mdc_mib_ietf_reserved,
							NULL
						};

						proto_tree_add_bitmask_list_value(subtree2, tvb, subopt_off, 2, ietf_flags, mib_val);
						}
						break;

					case PKT_MDC_MIB_EURO: {
						static int * const euro_flags[] = {
							&hf_dhcp_pkt_mdc_mib_euro_mta,
							&hf_dhcp_pkt_mdc_mib_euro_signaling,
							&hf_dhcp_pkt_mdc_mib_euro_management_event,
							&hf_dhcp_pkt_mdc_mib_euro_mta_extension,
							&hf_dhcp_pkt_mdc_mib_euro_mta_signaling_extension,
							&hf_dhcp_pkt_mdc_mib_euro_mta_mem_extension,
							&hf_dhcp_pkt_mdc_mib_euro_reserved,
							NULL
						};

						proto_tree_add_bitmask_list_value(subtree2, tvb, subopt_off, 2, euro_flags, mib_val);
						}
						break;

					default:
						break;
					}
					subopt_off += 2;
				}

			}
			off += (tlv_len * 2) + 4;
		}
	}
}

static gboolean
dissect_packetcable_mta_vendor_id_heur( tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, void *data _U_ )
{
	guint8* vendor_id;

	if (tvb_reported_length(tvb) < 8) {
		return FALSE;
	}

	vendor_id = tvb_get_string_enc(pinfo->pool, tvb, 0, 8, ENC_ASCII|ENC_NA);
	if ((strcmp((const char*)vendor_id, PACKETCABLE_MTA_CAP10) == 0) ||
		(strcmp((const char*)vendor_id, PACKETCABLE_MTA_CAP15) == 0) ||
		(strcmp((const char*)vendor_id, PACKETCABLE_MTA_CAP20) == 0)) {
		dissect_packetcable_mta_cap(tree, pinfo, tvb, 0, tvb_reported_length(tvb));
		return TRUE;
	}

	return FALSE;
}

/* DOCSIS Cable Modem device capabilities (option 60/option 125). */
#define DOCSIS_CM_CAP_TLV_OFF 12

#define DOCSIS_CM_CAP_CONCAT_SUP	0x01
#define DOCSIS_CM_CAP_DOCSIS_VER	0x02
#define DOCSIS_CM_CAP_FRAG_SUP		0x03
#define DOCSIS_CM_CAP_PHS_SUP		0x04
#define DOCSIS_CM_CAP_IGMP_SUP		0x05
#define DOCSIS_CM_CAP_PRIV_SUP		0x06
#define DOCSIS_CM_CAP_DSAID_SUP		0x07
#define DOCSIS_CM_CAP_USSF_SUP		0x08
#define DOCSIS_CM_CAP_FILT_SUP		0x09
#define DOCSIS_CM_CAP_TET_MI		0x0a
#define DOCSIS_CM_CAP_TET		0x0b
#define DOCSIS_CM_CAP_DCC_SUP		0x0c
#define DOCSIS_CM_CAP_IPFILT_SUP	0x0d
#define DOCSIS_CM_CAP_LLCFILT_SUP	0x0e
#define DOCSIS_CM_CAP_EXPUNI_SPACE	0x0f
#define DOCSIS_CM_CAP_RNGHLDOFF_SUP	0x10
#define DOCSIS_CM_CAP_L2VPN_SUP		0x11
#define DOCSIS_CM_CAP_L2VPN_HOST_SUP	0x12
#define DOCSIS_CM_CAP_DUTFILT_SUP	0x13
#define DOCSIS_CM_CAP_USFREQRNG_SUP	0x14
#define DOCSIS_CM_CAP_USSYMRATE_SUP	0x15
#define DOCSIS_CM_CAP_SACM2_SUP		0x16
#define DOCSIS_CM_CAP_SACM2HOP_SUP	0x17
#define DOCSIS_CM_CAP_MULTTXCHAN_SUP	0x18
#define DOCSIS_CM_CAP_512USTXCHAN_SUP	0x19
#define DOCSIS_CM_CAP_256USTXCHAN_SUP	0x1a
#define DOCSIS_CM_CAP_TOTALSIDCLU_SUP	0x1b
#define DOCSIS_CM_CAP_SIDCLUPERSF_SUP	0x1c
#define DOCSIS_CM_CAP_MULTRXCHAN_SUP	0x1d
#define DOCSIS_CM_CAP_TOTALDSID_SUP	0x1e
#define DOCSIS_CM_CAP_RESEQDSID_SUP	0x1f
#define DOCSIS_CM_CAP_MULTDSID_SUP	0x20
#define DOCSIS_CM_CAP_MULTDSIDFW_SUP	0x21
#define DOCSIS_CM_CAP_FCTF_SUP		0x22
#define DOCSIS_CM_CAP_DPV_SUP		0x23
#define DOCSIS_CM_CAP_UGSPERUSFLOW_SUP	0x24
#define DOCSIS_CM_CAP_MAPUCDRECEIPT_SUP	0x25
#define DOCSIS_CM_CAP_USDROPCLASSIF_SUP	0x26
#define DOCSIS_CM_CAP_IPV6_SUP		0x27
#define DOCSIS_CM_CAP_ExUsTrPow		0x28
#define DOCSIS_CM_CAP_Opt802MPLSSup		0x29
#define DOCSIS_CM_CAP_DounEnc		0x2a
#define DOCSIS_CM_CAP_EnrgMang		0x2c

static const value_string docsis_cm_cap_type_vals[] = {
	{ DOCSIS_CM_CAP_CONCAT_SUP,		"Concatenation Support" },
	{ DOCSIS_CM_CAP_DOCSIS_VER,		"DOCSIS Version" },
	{ DOCSIS_CM_CAP_FRAG_SUP,		"Fragmentation Support" },
	{ DOCSIS_CM_CAP_PHS_SUP,		"Payload Header Suppression Support" },
	{ DOCSIS_CM_CAP_IGMP_SUP,		"IGMP Support" },
	{ DOCSIS_CM_CAP_PRIV_SUP,		"Privacy Support" },
	{ DOCSIS_CM_CAP_DSAID_SUP,		"Downstream SAID Support" },
	{ DOCSIS_CM_CAP_USSF_SUP,		"Upstream Service Flow Support" },
	{ DOCSIS_CM_CAP_FILT_SUP,		"Optional Filtering Support" },
	{ DOCSIS_CM_CAP_TET_MI,			"Transmit Equalizer Taps per Modulation Interval" },
	{ DOCSIS_CM_CAP_TET,			"Number of Transmit Equalizer Taps" },
	{ DOCSIS_CM_CAP_DCC_SUP,		"DCC Support" },
	{ DOCSIS_CM_CAP_IPFILT_SUP,		"IP Filters Support" },
	{ DOCSIS_CM_CAP_LLCFILT_SUP,		"LLC Filters Support" },
	{ DOCSIS_CM_CAP_EXPUNI_SPACE,		"Expanded Unicast SID Space" },
	{ DOCSIS_CM_CAP_RNGHLDOFF_SUP,		"Ranging Hold-Off Support" },
	{ DOCSIS_CM_CAP_L2VPN_SUP,		"L2VPN Capability" },
	{ DOCSIS_CM_CAP_L2VPN_HOST_SUP,		"L2VPN eSAFE Host Capability" },
	{ DOCSIS_CM_CAP_DUTFILT_SUP,		"Downstream Unencrypted Traffic (DUT) Filtering" },
	{ DOCSIS_CM_CAP_USFREQRNG_SUP,		"Upstream Frequency Range Support" },
	{ DOCSIS_CM_CAP_USSYMRATE_SUP,		"Upstream Symbol Rate Support" },
	{ DOCSIS_CM_CAP_SACM2_SUP,		"Selectable Active Code Mode 2 Support" },
	{ DOCSIS_CM_CAP_SACM2HOP_SUP,		"Code Hopping Mode 2 Support" },
	{ DOCSIS_CM_CAP_MULTTXCHAN_SUP,		"Multiple Transmit Channel Support" },
	{ DOCSIS_CM_CAP_512USTXCHAN_SUP,	"5.12 Msps Upstream Transmit Channel Support" },
	{ DOCSIS_CM_CAP_256USTXCHAN_SUP,	"2.56 Msps Upstream Transmit Channel Support" },
	{ DOCSIS_CM_CAP_TOTALSIDCLU_SUP,	"Total SID Cluster Support" },
	{ DOCSIS_CM_CAP_SIDCLUPERSF_SUP,	"SID Clusters per Service Flow Support" },
	{ DOCSIS_CM_CAP_MULTRXCHAN_SUP,		"Multiple Receive Channel Support" },
	{ DOCSIS_CM_CAP_TOTALDSID_SUP,		"Total Downstream Service ID (DSID) Support" },
	{ DOCSIS_CM_CAP_RESEQDSID_SUP,		"Resequencing Downstream Service ID (DSID) Support" },
	{ DOCSIS_CM_CAP_MULTDSID_SUP,		"Multicast Downstream Service ID (DSID) Support" },
	{ DOCSIS_CM_CAP_MULTDSIDFW_SUP,		"Multicast DSID Forwarding" },
	{ DOCSIS_CM_CAP_FCTF_SUP,		"Frame Control Type Forwarding Capability" },
	{ DOCSIS_CM_CAP_DPV_SUP,		"DPV Capability" },
	{ DOCSIS_CM_CAP_UGSPERUSFLOW_SUP,	"Unsolicited Grant Service/Upstream Service Flow Support" },
	{ DOCSIS_CM_CAP_MAPUCDRECEIPT_SUP,	"MAP and UCD Receipt Support" },
	{ DOCSIS_CM_CAP_USDROPCLASSIF_SUP,	"Upstream Drop Classifier Support" },
	{ DOCSIS_CM_CAP_IPV6_SUP,		"IPv6 Support" },
	{ DOCSIS_CM_CAP_ExUsTrPow,		"Extended Upstream Transmit Power Capability (1/4 dB)" },
	{ DOCSIS_CM_CAP_Opt802MPLSSup,		"Optional 802.1ad, 802.1ah, MPLS Classification Support" },
	{ DOCSIS_CM_CAP_DounEnc,		"D-ONU Capabilities Encoding" },
	{ DOCSIS_CM_CAP_EnrgMang,		"Energy Management Capabilities" },
	{ 0, NULL }
};

static const value_string docsis_cm_cap_supported_vals[] = {
	{ 0x00,	"Not Support" },
	{ 0x01,	"Supported" },
	{ 0,		NULL }
};

static const value_string docsis_cm_cap_version_vals[] = {
	{ 0x00,	"DOCSIS 1.0" },
	{ 0x01,	"DOCSIS 1.1" },
	{ 0x02,	"DOCSIS 2.0" },
	{ 0x03,	"DOCSIS 3.0" },
	{ 0,		NULL }
};

static const value_string docsis_cm_cap_privacy_vals[] = {
	{ 0x00,	"BPI Support" },
	{ 0x01,	"BPI Plus Support" },
	{ 0,		NULL }
};

static int hf_dhcp_docsis_cm_cap_ranging_hold_off_cm = -1;
static int hf_dhcp_docsis_cm_cap_ranging_hold_off_eps = -1;
static int hf_dhcp_docsis_cm_cap_ranging_hold_off_emta = -1;
static int hf_dhcp_docsis_cm_cap_ranging_hold_off_dsg = -1;

static const value_string docsis_cm_cap_l2vpn_vals[] = {
	{ 0x00,	"CM not compliant with DOCSIS L2VPN Section 7 (default)" },
	{ 0x01,	"CM compliant with DOCSIS L2VPN Section 7" },
	{ 0,		NULL }
};

static const value_string docsis_cm_cap_filt_vals[] = {
	{ 0x00,	"802.1P Filtering" },
	{ 0x01,	"802.1Q Filtering" },
	{ 0,		NULL }
};

static int hf_dhcp_docsis_cm_cap_mpls_stpid = -1;
static int hf_dhcp_docsis_cm_cap_mpls_svid = -1;
static int hf_dhcp_docsis_cm_cap_mpls_spcp = -1;
static int hf_dhcp_docsis_cm_cap_mpls_sdei = -1;
static int hf_dhcp_docsis_cm_cap_mpls_ctpid = -1;
static int hf_dhcp_docsis_cm_cap_mpls_cvid = -1;
static int hf_dhcp_docsis_cm_cap_mpls_cpcp = -1;
static int hf_dhcp_docsis_cm_cap_mpls_ccfi = -1;
static int hf_dhcp_docsis_cm_cap_mpls_stci = -1;
static int hf_dhcp_docsis_cm_cap_mpls_ctci = -1;
static int hf_dhcp_docsis_cm_cap_mpls_itpid = -1;
static int hf_dhcp_docsis_cm_cap_mpls_isid = -1;
static int hf_dhcp_docsis_cm_cap_mpls_itci = -1;
static int hf_dhcp_docsis_cm_cap_mpls_ipcp = -1;
static int hf_dhcp_docsis_cm_cap_mpls_idei = -1;
static int hf_dhcp_docsis_cm_cap_mpls_iuca = -1;
static int hf_dhcp_docsis_cm_cap_mpls_btpid = -1;
static int hf_dhcp_docsis_cm_cap_mpls_btci = -1;
static int hf_dhcp_docsis_cm_cap_mpls_bpcp = -1;
static int hf_dhcp_docsis_cm_cap_mpls_bdei = -1;
static int hf_dhcp_docsis_cm_cap_mpls_bvid = -1;
static int hf_dhcp_docsis_cm_cap_mpls_bda = -1;
static int hf_dhcp_docsis_cm_cap_mpls_bsa = -1;
static int hf_dhcp_docsis_cm_cap_mpls_tc = -1;
static int hf_dhcp_docsis_cm_cap_mpls_label = -1;

static const value_string docsis_cm_cap_enrgmang_vals[] = {
	{ 0x00,	"Energy Management 1x1 Feature" },
	{ 0,		NULL }
};

static const value_string docsis_cm_cap_usfreqrng_vals[] = {
	{ 0x00,	"Standard Upstream Frequency Range" },
	{ 0x01,	"Standard Upstream Frequency Range and Extended Upstream Frequency Range" },
	{ 0,		NULL }
};

static const value_string docsis_cm_cap_map_ucd_receipt_vals[] = {
	{ 0x00,	"CM cannot support the receipt of MAPs and UCDs on downstreams other than the Primary Downstream Channel" },
	{ 0x01,	"CM can support the receipt of MAPs and UCDs on downstreams other than the Primary Downstream Channel" },
	{ 0,		NULL }
};

static const value_string docsis_cm_cap_map_dpv_support_vals[] = {
	{ 0x00,	"U1 supported as a Start Reference Point for DPV per Path" },
	{ 0x01,	"U1 supported as a Start Reference Point for DPV per Packet" },
	{ 0,		NULL }
};

static const value_string docsis_cm_cap_map_multDsidForward_support_vals[] = {
	{ 0x00,	"No support for multicast DSID forwarding" },
	{ 0x01,	"Support for GMAC explicit multicast DSID forwarding" },
	{ 0x02,	"Support for GMAC promiscuous multicast DSID forwarding" },
	{ 0,		NULL }
};

static const value_string docsis_cm_cap_map_fctfc_support_vals[] = {
	{ 0x00,	"Isolation Packet PDU MAC Header (FC_Type of 10) is not forwarded" },
	{ 0x01,	"Isolation Packet PDU MAC Header (FC_Type of 10) is forwarded" },
	{ 0,		NULL }
};

static const value_string docsis_cm_cap_map_l2vpn_esafe_index_support_vals[] = {
	{ 0x01,	"ePs or eRouter" },
	{ 0x10,	"eMTA" },
	{ 0x11,	"eSTB-IP" },
	{ 0x12,	"eSTB-DSG" },
	{ 0x13,	"eTEA" },
	{ 0,		NULL }
};

static int hf_dhcp_docsis_cm_cap_ussymrate_160 = -1;
static int hf_dhcp_docsis_cm_cap_ussymrate_320 = -1;
static int hf_dhcp_docsis_cm_cap_ussymrate_640 = -1;
static int hf_dhcp_docsis_cm_cap_ussymrate_1280 = -1;
static int hf_dhcp_docsis_cm_cap_ussymrate_2560 = -1;
static int hf_dhcp_docsis_cm_cap_ussymrate_5120 = -1;

static void
display_uint_with_range_checking(proto_item *ti, guint8 val_byte, guint16 val_uint16, int min_value, int max_value)
{
	guint16 value;

	if (0 != val_byte)
	{
		value = val_byte;
	}
	else
	{
		value = val_uint16;
	}
	proto_item_append_text(ti, "%i", value);
	if ((value < min_value) ||
	    (value > max_value))
	{
		proto_item_append_text(ti, " (Value Out-of-Range [%i..%i])", min_value, max_value);
	}
}

static void get_opt125_tlv(wmem_allocator_t *scope, tvbuff_t *tvb, guint off, guint8 *tlvtype, guint8 *tlvlen, guint8 **value)
{
	/* Type */
	*tlvtype = tvb_get_guint8(tvb, off);
	/* Length */
	*tlvlen	 = tvb_get_guint8(tvb, off+1);
	/* Value */
	*value = (guint8 *)tvb_memdup(scope, tvb, off + 2, *tlvlen);
}

static void get_opt60_tlv(wmem_allocator_t *scope, tvbuff_t *tvb, guint off, guint8 *tlvtype, guint8 *tlvlen, guint8 **value)
{
	guint	i;
	guint8 *val_asc;

	val_asc = (guint8 *)wmem_alloc0(scope, 4);
	/* Type */
	tvb_memcpy(tvb, val_asc, off, 2);
	*tlvtype = (guint8)strtoul((gchar*)val_asc, NULL, 16);
	/* Length */
	tvb_memcpy(tvb, val_asc, off + 2, 2);
	*tlvlen = (guint8)strtoul((gchar*)val_asc, NULL, 16);
	/* Value */
	*value = (guint8 *)wmem_alloc0(scope, *tlvlen);
	for (i=0; i<*tlvlen; i++)
	{
		memset(val_asc, 0, 4);
		tvb_memcpy(tvb, val_asc, off + ((i*2) + 4), 2);
		(*value)[i] = (guint8)strtoul((gchar*)val_asc, NULL, 16);
	}
}

static void
dissect_docsis_cm_cap(packet_info *pinfo, proto_tree *v_tree, tvbuff_t *tvb, int voff, int len, gboolean opt125)
{
	guint8	   *asc_val;
	proto_item *ti;
	proto_tree *subtree;
	guint8	    tlv_type;
	guint8	    tlv_len;
	guint8	    val_byte   = 0;
	guint16	    val_uint16 = 0;
	guint8	   *val_other  = NULL;
	guint	    off	       = voff;

	asc_val = (guint8*)wmem_alloc0(wmem_packet_scope(), 4);

	if (opt125)
	{
		/* Option 125 is formatted as uint8's */
		/* Type */
		tlv_type = tvb_get_guint8(tvb, off);
		/* Length */
		tlv_len	 = tvb_get_guint8(tvb, off+1);
		proto_tree_add_uint(v_tree, hf_dhcp_docsis_cm_cap_len, tvb, off+1, 1, tlv_len);
	}
	else
	{
		/* Option 60 is formatted as an ASCII string.
		   Since the capabilities are the same for both options
		   I am converting the Option 60 values from ASCII to
		   uint8s to allow the same parser to work for both */
		off += DOCSIS_CM_CAP_TLV_OFF;
		tvb_memcpy (tvb, asc_val, off, 2);
		tlv_len = (guint8)strtoul((gchar*)asc_val, NULL, 16);
		proto_tree_add_uint_format_value(v_tree, hf_dhcp_docsis_cm_cap_len, tvb, off+2, 2,
						 tlv_len, "%d", tlv_len);
	}

	off+=2;

	while (off - ((guint) voff) < ((guint) len))
	{
		tlv_type = 0;
		tlv_len = 0;
		val_byte = 0;
		val_uint16 = 0;

		if (opt125)
		{
			get_opt125_tlv(pinfo->pool, tvb, off, &tlv_type, &tlv_len, &val_other);
			ti =  proto_tree_add_uint_format(v_tree, hf_dhcp_docsis_cm_cap_type, tvb, off,
							 tlv_len + 2,
							 tlv_type,
							 "0x%02x: %s = ",
							 tlv_type,
							 val_to_str_const(tlv_type, docsis_cm_cap_type_vals, "unknown"));
		}
		else
		{
			/* Option 60 is formatted as an ASCII string.  Since the capabilities
			   are the same for both options I am converting the Option 60 values
			   from ASCII to uint8s to allow the same parser to work for both */
			get_opt60_tlv(pinfo->pool, tvb, off, &tlv_type, &tlv_len, &val_other);
			ti =  proto_tree_add_uint_format(v_tree, hf_dhcp_docsis_cm_cap_type, tvb, off,
							 (tlv_len * 2) + 4,
							 tlv_type,
							 "0x%02x: %s = ",
							 tlv_type,
							 val_to_str_const(tlv_type, docsis_cm_cap_type_vals, "unknown"));
		}

		if (tlv_len == 1)
		{
			/* The value refers to a byte. */
			val_byte = val_other[0];
		}
		else
		{
			if (tlv_len == 2)
			{
				/* The value refers to a uint16. */
				val_uint16 = (val_other[0] << 8) + val_other[1];
			}
		}

		switch (tlv_type)
		{
		case DOCSIS_CM_CAP_CONCAT_SUP:
		case DOCSIS_CM_CAP_FRAG_SUP:
		case DOCSIS_CM_CAP_PHS_SUP:
		case DOCSIS_CM_CAP_IGMP_SUP:
		case DOCSIS_CM_CAP_DCC_SUP:
		case DOCSIS_CM_CAP_EXPUNI_SPACE:
		case DOCSIS_CM_CAP_DUTFILT_SUP:
		case DOCSIS_CM_CAP_SACM2_SUP:
		case DOCSIS_CM_CAP_SACM2HOP_SUP:
		case DOCSIS_CM_CAP_IPV6_SUP:
			proto_item_append_text(ti,
					       "%s",
					       val_to_str_const(val_byte, docsis_cm_cap_supported_vals, "Reserved"));
			break;
		case DOCSIS_CM_CAP_DOCSIS_VER:
			proto_item_append_text(ti,
					       "%s",
					       val_to_str_const(val_byte, docsis_cm_cap_version_vals, "Reserved"));
			break;
		case DOCSIS_CM_CAP_PRIV_SUP:
			proto_item_append_text(ti,
					       "%s",
					       val_to_str_const(val_byte, docsis_cm_cap_privacy_vals, "Reserved"));
			break;
		case DOCSIS_CM_CAP_FILT_SUP:
			proto_item_append_text(ti,
					       "%s",
					       val_to_str_const(val_byte, docsis_cm_cap_filt_vals, "Reserved"));
			break;
		case DOCSIS_CM_CAP_L2VPN_SUP:
			proto_item_append_text(ti,
					       "%s",
					       val_to_str_const(val_byte, docsis_cm_cap_l2vpn_vals, "Reserved"));
			break;
		case DOCSIS_CM_CAP_L2VPN_HOST_SUP:
			if (tlv_len == 7) {
				proto_item_append_text(ti,
						       "eSAFE ifIndex %s (%i)/eSAFE MAC %2.2x:%2.2x:%2.2x:%2.2x:%2.2x:%2.2x",
						       val_to_str_const(val_other[0], docsis_cm_cap_map_l2vpn_esafe_index_support_vals, "Reserved"),
						       val_other[0],
						       val_other[1],
						       val_other[2],
						       val_other[3],
						       val_other[4],
						       val_other[5],
						       val_other[6]);
			} else {
				proto_item_append_text(ti,
						       "Invalid (length should be 7, is %d)",
						       tlv_len);
			}
			break;
		case DOCSIS_CM_CAP_USFREQRNG_SUP:
			proto_item_append_text(ti,
					       "%s",
					       val_to_str_const(val_byte, docsis_cm_cap_usfreqrng_vals, "Reserved"));
			break;
		case DOCSIS_CM_CAP_MAPUCDRECEIPT_SUP:
			proto_item_append_text(ti,
					       "%s",
					       val_to_str_const(val_byte, docsis_cm_cap_map_ucd_receipt_vals, "Reserved"));
			break;
		case DOCSIS_CM_CAP_DPV_SUP:
			proto_item_append_text(ti,
					       "%s",
					       val_to_str_const(val_byte, docsis_cm_cap_map_dpv_support_vals, "Reserved"));
			break;
		case DOCSIS_CM_CAP_DSAID_SUP:
		case DOCSIS_CM_CAP_MULTTXCHAN_SUP:
		case DOCSIS_CM_CAP_512USTXCHAN_SUP:
		case DOCSIS_CM_CAP_256USTXCHAN_SUP:
		case DOCSIS_CM_CAP_TOTALSIDCLU_SUP:
		case DOCSIS_CM_CAP_MULTRXCHAN_SUP:
		case DOCSIS_CM_CAP_UGSPERUSFLOW_SUP:
		case DOCSIS_CM_CAP_USSF_SUP:
			display_uint_with_range_checking(ti, val_byte, val_uint16, 0, 255);
			break;
		case DOCSIS_CM_CAP_RESEQDSID_SUP:
		case DOCSIS_CM_CAP_MULTDSID_SUP:
			display_uint_with_range_checking(ti, val_byte, val_uint16, 16, 255);
			break;
		case DOCSIS_CM_CAP_SIDCLUPERSF_SUP:
			display_uint_with_range_checking(ti, val_byte, val_uint16, 2, 8);
			break;
		case DOCSIS_CM_CAP_TOTALDSID_SUP:
			display_uint_with_range_checking(ti, val_byte, val_uint16, 32, 255);
			break;
		case DOCSIS_CM_CAP_TET:
			display_uint_with_range_checking(ti, val_byte, val_uint16, 8, 64);
			break;
		case DOCSIS_CM_CAP_TET_MI:
			if ((val_byte == 1) ||
			    (val_byte == 2) ||
			    (val_byte == 4))
			{
				proto_item_append_text(ti,
						       " %i",
						       val_byte);
			}
			else
			{
				proto_item_append_text(ti,
						       " (Invalid Value %i : Should be [1,2,4]",
						       val_byte);
			}
			break;
		case DOCSIS_CM_CAP_IPFILT_SUP:
		case DOCSIS_CM_CAP_USDROPCLASSIF_SUP:
			display_uint_with_range_checking(ti, val_byte, val_uint16, 64, 65535);
			break;
		case DOCSIS_CM_CAP_LLCFILT_SUP:
			display_uint_with_range_checking(ti, val_byte, val_uint16, 10, 65535);
			break;
		case DOCSIS_CM_CAP_ExUsTrPow:
			if (val_byte == 0)
			{
				proto_item_append_text(ti, "%i", val_byte);
			}
			else
			{
				display_uint_with_range_checking(ti, val_byte, val_uint16, 205, 244);
			}
			break;
		case DOCSIS_CM_CAP_Opt802MPLSSup:
			proto_item_append_text(ti,
					       "0x%02x", val_byte);
		case DOCSIS_CM_CAP_DounEnc:
			/* TODO: add D-ONU Capabilities Encoding according DPoE-SP-MULPIv1.0-I02-120607 */
			break;
		case DOCSIS_CM_CAP_EnrgMang:
			proto_item_append_text(ti,
					       "%s",
					       val_to_str_const(val_byte, docsis_cm_cap_enrgmang_vals, "Reserved"));
			break;
		case DOCSIS_CM_CAP_RNGHLDOFF_SUP:
			proto_item_append_text(ti,
					       "Ranging ID ");
			if (tlv_len == 4)
			{
				proto_item_append_text(ti,
						"(0x%04x)", (val_other[0] << sizeof(guint8)) + val_other[1]);
				proto_item_append_text(ti,
						" Component Bit Mask ");
				proto_item_append_text(ti,
						"(0x%04x)", (val_other[2] << sizeof(guint8)) + val_other[3]);
			}
			else
			{
				proto_item_append_text(ti,
						" (Invalid Length %u : Should be 4",
						tlv_len);
			}
			break;
		case DOCSIS_CM_CAP_USSYMRATE_SUP:
			proto_item_append_text(ti,
					       "0x%02x", val_byte);
			break;
		case DOCSIS_CM_CAP_FCTF_SUP:
			proto_item_append_text(ti,
					       "%s",
					       val_to_str_const(val_byte, docsis_cm_cap_map_fctfc_support_vals, "Reserved"));
			break;
		case DOCSIS_CM_CAP_MULTDSIDFW_SUP:
			proto_item_append_text(ti,
					       "%s",
					       val_to_str_const(val_byte, docsis_cm_cap_map_multDsidForward_support_vals, "Reserved"));
			break;
		}

		subtree = proto_item_add_subtree(ti, ett_dhcp_option);
		if (tlv_type == DOCSIS_CM_CAP_RNGHLDOFF_SUP && tlv_len >= 4)
		{
			static int * const flags[] = {
				&hf_dhcp_docsis_cm_cap_ranging_hold_off_cm,
				&hf_dhcp_docsis_cm_cap_ranging_hold_off_eps,
				&hf_dhcp_docsis_cm_cap_ranging_hold_off_emta,
				&hf_dhcp_docsis_cm_cap_ranging_hold_off_dsg,
				NULL
			};
			val_uint16 = (val_other[2] << sizeof(guint8)) + val_other[3];

			proto_tree_add_bitmask_list_value(subtree, tvb, off + 2, 4, flags, val_uint16);
		}
		if (tlv_type == DOCSIS_CM_CAP_USSYMRATE_SUP)
		{
			static int * const flags[] = {
				&hf_dhcp_docsis_cm_cap_ussymrate_160,
				&hf_dhcp_docsis_cm_cap_ussymrate_320,
				&hf_dhcp_docsis_cm_cap_ussymrate_640,
				&hf_dhcp_docsis_cm_cap_ussymrate_1280,
				&hf_dhcp_docsis_cm_cap_ussymrate_2560,
				&hf_dhcp_docsis_cm_cap_ussymrate_5120,
				NULL
			};

			proto_tree_add_bitmask_list_value(subtree, tvb, off + 2, 1, flags, val_byte);
		}
		if (tlv_type == DOCSIS_CM_CAP_Opt802MPLSSup && tlv_len >= 4)
		{
			static int * const flags[] = {
				&hf_dhcp_docsis_cm_cap_mpls_stpid,
				&hf_dhcp_docsis_cm_cap_mpls_svid,
				&hf_dhcp_docsis_cm_cap_mpls_spcp,
				&hf_dhcp_docsis_cm_cap_mpls_sdei,
				&hf_dhcp_docsis_cm_cap_mpls_ctpid,
				&hf_dhcp_docsis_cm_cap_mpls_cvid,
				&hf_dhcp_docsis_cm_cap_mpls_cpcp,
				&hf_dhcp_docsis_cm_cap_mpls_ccfi,
				&hf_dhcp_docsis_cm_cap_mpls_stci,
				&hf_dhcp_docsis_cm_cap_mpls_ctci,
				&hf_dhcp_docsis_cm_cap_mpls_itpid,
				&hf_dhcp_docsis_cm_cap_mpls_isid,
				&hf_dhcp_docsis_cm_cap_mpls_itci,
				&hf_dhcp_docsis_cm_cap_mpls_ipcp,
				&hf_dhcp_docsis_cm_cap_mpls_idei,
				&hf_dhcp_docsis_cm_cap_mpls_iuca,
				&hf_dhcp_docsis_cm_cap_mpls_btpid,
				&hf_dhcp_docsis_cm_cap_mpls_btci,
				&hf_dhcp_docsis_cm_cap_mpls_bpcp,
				&hf_dhcp_docsis_cm_cap_mpls_bdei,
				&hf_dhcp_docsis_cm_cap_mpls_bvid,
				&hf_dhcp_docsis_cm_cap_mpls_bda,
				&hf_dhcp_docsis_cm_cap_mpls_bsa,
				&hf_dhcp_docsis_cm_cap_mpls_tc,
				&hf_dhcp_docsis_cm_cap_mpls_label,
				NULL
			};
			val_uint16 = (val_other[2] << sizeof(guint8)) + val_other[3];

			proto_tree_add_bitmask_list_value(subtree, tvb, off + 2, 4, flags, val_uint16);
		}
		if (opt125)
		{
			off += (tlv_len) + 2;
		}
		else
		{
			off += (tlv_len *2) + 4;
		}

	}
}

static gboolean
dissect_packetcable_cm_vendor_id_heur( tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, void *data _U_ )
{
	guint8* vendor_id;

	if (tvb_reported_length(tvb) < 10) {
		return FALSE;
	}

	vendor_id = tvb_get_string_enc(pinfo->pool, tvb, 0, 10, ENC_ASCII|ENC_NA);
	if ((strcmp((const char*)vendor_id, PACKETCABLE_CM_CAP11) == 0) ||
		(strcmp((const char*)vendor_id, PACKETCABLE_CM_CAP20) == 0)) {
		dissect_docsis_cm_cap(pinfo, tree, tvb, 0, tvb_reported_length(tvb), FALSE);
		return TRUE;
	}

	if ((strcmp((const char*)vendor_id, PACKETCABLE_CM_CAP30) == 0)) {
		proto_tree_add_item(tree, hf_dhcp_option_vendor_class_data, tvb, 0, tvb_reported_length(tvb), ENC_ASCII);
		return TRUE;
	}

	return FALSE;
}

static gboolean
dissect_apple_bsdp_vendor_id_heur(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree, void *data _U_)

{
	int vendor_id_len = (int)strlen(APPLE_BSDP_CLIENT);
	if ((int)tvb_reported_length(tvb) < vendor_id_len) {
		return FALSE;
	}

	if (tvb_memeql(tvb, 0, (const guint8*)APPLE_BSDP_CLIENT, vendor_id_len) == 0) {
		proto_tree_add_item(tree, hf_dhcp_option_vendor_class_data, tvb, vendor_id_len, tvb_reported_length_remaining(tvb, vendor_id_len), ENC_ASCII);
		return TRUE;
	}

	return FALSE;
}


/* Definitions specific to PKT-SP-PROV-I05-021127 begin with "PKT_CCC_I05".
   Definitions specific to IETF draft 5 and RFC 3495 begin with "PKT_CCC_IETF".
   Shared definitions begin with "PKT_CCC".
 */
#define PKT_CCC_PRI_DHCP       1
#define PKT_CCC_SEC_DHCP       2
#define PKT_CCC_I05_SNMP       3
#define PKT_CCC_IETF_PROV_SRV  3
#define PKT_CCC_I05_PRI_DNS    4
#define PKT_CCC_IETF_AS_KRB    4
#define PKT_CCC_I05_SEC_DNS    5
#define PKT_CCC_IETF_AP_KRB    5
#define PKT_CCC_KRB_REALM      6
#define PKT_CCC_TGT_FLAG       7
#define PKT_CCC_PROV_TIMER     8
#define PKT_CCC_CMS_FQDN       9
#define PKT_CCC_IETF_SEC_TKT   9
#define PKT_CCC_AS_KRB	      10
#define PKT_CCC_AP_KRB	      11
#define PKT_CCC_MTA_KRB_CLEAR 12

static const value_string pkt_i05_ccc_opt_vals[] = {
	{ PKT_CCC_PRI_DHCP,		"Primary DHCP Server" },
	{ PKT_CCC_SEC_DHCP,		"Secondary DHCP Server" },
	{ PKT_CCC_I05_SNMP,		"SNMP Entity" },
	{ PKT_CCC_I05_PRI_DNS,		"Primary DNS Server" },
	{ PKT_CCC_I05_SEC_DNS,		"Secondary DNS Server" },
	{ PKT_CCC_KRB_REALM,		"Kerberos Realm" },
	{ PKT_CCC_TGT_FLAG,		"MTA should fetch TGT?" },
	{ PKT_CCC_PROV_TIMER,		"Provisioning Timer" },
	{ PKT_CCC_CMS_FQDN,		"CMS FQDN" },
	{ PKT_CCC_AS_KRB,		"AS-REQ/AS-REP Backoff and Retry" },
	{ PKT_CCC_AP_KRB,		"AP-REQ/AP-REP Backoff and Retry" },
	{ PKT_CCC_MTA_KRB_CLEAR,	"MTA should clear Kerberos tickets?" },
	{ 0, NULL },
};

static const value_string pkt_draft5_ccc_opt_vals[] = {
	{ PKT_CCC_PRI_DHCP,		"TSP's Primary DHCP Server" },
	{ PKT_CCC_SEC_DHCP,		"TSP's Secondary DHCP Server" },
	{ PKT_CCC_IETF_PROV_SRV,	"TSP's Provisioning Server" },
	{ PKT_CCC_IETF_AS_KRB,		"TSP's AS-REQ/AS-REP Backoff and Retry" },
	{ PKT_CCC_IETF_AP_KRB,		"TSP's AP-REQ/AP-REP Backoff and Retry" },
	{ PKT_CCC_KRB_REALM,		"TSP's Kerberos Realm Name" },
	{ PKT_CCC_TGT_FLAG,		"TSP's Ticket Granting Server Utilization" },
	{ PKT_CCC_PROV_TIMER,		"TSP's Provisioning Timer Value" },
	{ PKT_CCC_IETF_SEC_TKT,		"PacketCable Security Ticket Control" },
	{ 0, NULL },
};

static const value_string pkt_i05_ccc_ticket_ctl_vals[] = {
	{ 1, "Invalidate Provisioning Application Server's ticket" },
	{ 2, "Invalidate all CMS Application Server tickets" },
	{ 3, "Invalidate all Application Server tickets" },
	{ 0, NULL },
};

static int
dissect_packetcable_i05_ccc(packet_info *pinfo, proto_item *v_ti, proto_tree *v_tree,
			    tvbuff_t *tvb, int optoff, int optend)
{
	int	    suboptoff = optoff;
	guint8	    subopt, subopt_len, fetch_tgt, timer_val, ticket_ctl;
	proto_tree *pkt_s_tree;
	proto_item *vti;

	subopt = tvb_get_guint8(tvb, optoff);
	suboptoff++;

	if (suboptoff >= optend) {
		expert_add_info_format(pinfo, v_ti, &ei_dhcp_missing_subopt_length,
									"Suboption %d: no room left in option for suboption length", subopt);
		return (optend);
	}

	subopt_len = tvb_get_guint8(tvb, optoff);
	suboptoff++;

	vti = proto_tree_add_uint(v_tree, hf_dhcp_pc_i05_ccc_suboption, tvb, optoff, 1, subopt);
	proto_item_set_len(vti, subopt_len + 2);
	proto_item_append_text(vti, ": ");

	switch (subopt) {

	case PKT_CCC_PRI_DHCP:	/* String values */
	case PKT_CCC_SEC_DHCP:
	case PKT_CCC_I05_SNMP:
	case PKT_CCC_I05_PRI_DNS:
	case PKT_CCC_I05_SEC_DNS:
	case PKT_CCC_KRB_REALM:
	case PKT_CCC_CMS_FQDN:
		proto_item_append_text(vti, "%s (%u byte%s)",
				       tvb_format_stringzpad(pinfo->pool, tvb, suboptoff, subopt_len),
				       subopt_len,
				       plurality(subopt_len, "", "s") );
		suboptoff += subopt_len;
		break;

	case PKT_CCC_TGT_FLAG:
		if (suboptoff+1 > optend) {
			expert_add_info(pinfo, vti, &ei_dhcp_missing_subopt_value);
			return (optend);
		}
		fetch_tgt = tvb_get_guint8(tvb, suboptoff);
		proto_item_append_text(vti, "%s (%u byte%s%s)",
				       fetch_tgt ? "Yes" : "No",
				       subopt_len,
				       plurality(subopt_len, "", "s"),
				       subopt_len != 1 ? " [Invalid]" : "");
		suboptoff += subopt_len;
		break;

	case PKT_CCC_PROV_TIMER:
		if (suboptoff+1 > optend) {
			expert_add_info(pinfo, vti, &ei_dhcp_missing_subopt_value);
			return (optend);
		}
		timer_val = tvb_get_guint8(tvb, suboptoff);
		proto_item_append_text(vti, "%u%s (%u byte%s%s)", timer_val,
				       timer_val > 30 ? " [Invalid]" : "",
				       subopt_len,
				       plurality(subopt_len, "", "s"),
				       subopt_len != 1 ? " [Invalid]" : "");
		suboptoff += subopt_len;
		break;

	case PKT_CCC_AS_KRB:
		if (suboptoff+12 > optend) {
			expert_add_info(pinfo, vti, &ei_dhcp_missing_subopt_value);
			return (optend);
		}
		proto_item_append_text(vti, "(%u byte%s%s)", subopt_len,
				       plurality(subopt_len, "", "s"),
				       subopt_len != 12 ? " [Invalid]" : "");
		if (subopt_len == 12) {
			pkt_s_tree = proto_item_add_subtree(vti, ett_dhcp_option);
			proto_tree_add_item(pkt_s_tree, hf_dhcp_cl_ietf_ccc_dev_realm_unc_key_nom_timeout, tvb, suboptoff, 4, ENC_BIG_ENDIAN);
			proto_tree_add_item(pkt_s_tree, hf_dhcp_cl_ietf_ccc_dev_realm_unc_key_max_timeout, tvb, suboptoff + 4, 4, ENC_BIG_ENDIAN);
			proto_tree_add_item(pkt_s_tree, hf_dhcp_cl_ietf_ccc_dev_realm_unc_key_max_retries, tvb, suboptoff + 8, 4, ENC_BIG_ENDIAN);
		}
		suboptoff += subopt_len;
		break;

	case PKT_CCC_AP_KRB:
		if (suboptoff+12 > optend) {
			expert_add_info(pinfo, vti, &ei_dhcp_missing_subopt_value);
			return (optend);
		}
		proto_item_append_text(vti, "(%u byte%s%s)", subopt_len,
				       plurality(subopt_len, "", "s"),
				       subopt_len != 12 ? " [Invalid]" : "");
		if (subopt_len == 12) {
			pkt_s_tree = proto_item_add_subtree(vti, ett_dhcp_option);
			proto_tree_add_item(pkt_s_tree, hf_dhcp_cl_ietf_ccc_dev_prov_unc_key_nom_timeout, tvb, suboptoff + 8, 4, ENC_BIG_ENDIAN);
			proto_tree_add_item(pkt_s_tree, hf_dhcp_cl_ietf_ccc_dev_prov_unc_key_max_timeout, tvb, suboptoff + 8, 4, ENC_BIG_ENDIAN);
			proto_tree_add_item(pkt_s_tree, hf_dhcp_cl_ietf_ccc_dev_prov_unc_key_max_retries, tvb, suboptoff + 8, 4, ENC_BIG_ENDIAN);
		}
		suboptoff += subopt_len;
		break;

	case PKT_CCC_MTA_KRB_CLEAR:
		if (suboptoff+1 > optend) {
			expert_add_info(pinfo, vti, &ei_dhcp_missing_subopt_value);
			return (optend);
		}
		ticket_ctl = tvb_get_guint8(tvb, suboptoff);
		proto_item_append_text(vti, "%s (%u) (%u byte%s%s)",
				       val_to_str_const (ticket_ctl, pkt_i05_ccc_ticket_ctl_vals, "unknown/invalid"),
				       ticket_ctl,
				       subopt_len,
				       plurality(subopt_len, "", "s"),
				       subopt_len != 1 ? " [Invalid]" : "");
		suboptoff += subopt_len;
		break;

	default:
		suboptoff += subopt_len;
		break;

	}
	return suboptoff;
}

static int hf_dhcp_ccc_ietf_sec_tkt_pc_provision_server = -1;
static int hf_dhcp_ccc_ietf_sec_tkt_all_pc_call_management = -1;

static int
dissect_packetcable_ietf_ccc(packet_info *pinfo, proto_item *v_ti, proto_tree *v_tree,
			     tvbuff_t *tvb, int optoff, int optend, int revision)
{
	int	      suboptoff	    = optoff;
	guint8	      subopt, subopt_len;
	guint8	      prov_type, fetch_tgt, timer_val;
	guint16	      sec_tcm;
	proto_tree   *pkt_s_tree;
	proto_item   *vti;
	int	      max_timer_val = 255;
	const guchar *dns_name;
	gint	     dns_name_len;

	subopt = tvb_get_guint8(tvb, suboptoff);
	suboptoff++;

	if (suboptoff >= optend) {
		expert_add_info_format(pinfo, v_ti, &ei_dhcp_missing_subopt_length,
									"Suboption %d: no room left in option for suboption length", subopt);
		return (optend);
	}
	subopt_len = tvb_get_guint8(tvb, suboptoff);
	suboptoff++;

	vti = proto_tree_add_uint(v_tree, hf_dhcp_pc_ietf_ccc_suboption, tvb, optoff, 1, subopt);
	proto_item_set_len(vti, subopt_len + 2);
	proto_item_append_text(vti, ": ");

	switch (subopt) {

	case PKT_CCC_PRI_DHCP:	/* IPv4 values */
	case PKT_CCC_SEC_DHCP:
		if (suboptoff+4 > optend) {
			expert_add_info(pinfo, vti, &ei_dhcp_missing_subopt_value);
			return (optend);
		}
		proto_item_append_text(vti, "%s (%u byte%s%s)",
				       tvb_ip_to_str(pinfo->pool, tvb, suboptoff),
				       subopt_len,
				       plurality(subopt_len, "", "s"),
				       subopt_len != 4 ? " [Invalid]" : "");
		suboptoff += subopt_len;
		break;

	case PKT_CCC_IETF_PROV_SRV:
		if (suboptoff+1 > optend) {
			expert_add_info(pinfo, vti, &ei_dhcp_missing_subopt_value);
			return (optend);
		}
		prov_type = tvb_get_guint8(tvb, suboptoff);
		suboptoff += 1;
		switch (prov_type) {

		case 0:
			get_dns_name(tvb, suboptoff, subopt_len, suboptoff, (const char **)&dns_name, &dns_name_len);
			proto_item_append_text(vti, "%s (%u byte%s)", format_text(pinfo->pool, dns_name, dns_name_len),
					       subopt_len - 1, plurality(subopt_len, "", "s") );
			break;

		case 1:
			if (suboptoff+4 > optend) {
				expert_add_info(pinfo, vti, &ei_dhcp_missing_subopt_value);
				return (optend);
			}
			proto_item_append_text(vti, "%s (%u byte%s%s)",
					       tvb_ip_to_str(pinfo->pool, tvb, suboptoff),
					       subopt_len,
					       plurality(subopt_len, "", "s"),
					       subopt_len != 5 ? " [Invalid]" : "");
			break;

		default:
			proto_item_append_text(vti, "Invalid type: %u (%u byte%s)",
					       prov_type,
					       subopt_len,
					       plurality(subopt_len, "", "s") );
			break;
		}
		suboptoff += subopt_len - 1;
		break;

	case PKT_CCC_IETF_AS_KRB:
		if (suboptoff+12 > optend) {
			expert_add_info(pinfo, vti, &ei_dhcp_missing_subopt_value);
			return (optend);
		}
		proto_item_append_text(vti, "(%u byte%s%s)", subopt_len,
				       plurality(subopt_len, "", "s"),
				       subopt_len != 12 ? " [Invalid]" : "");
		if (subopt_len == 12) {
			pkt_s_tree = proto_item_add_subtree(vti, ett_dhcp_option);
			proto_tree_add_item(pkt_s_tree, hf_dhcp_cl_ietf_ccc_dev_realm_unc_key_nom_timeout, tvb, suboptoff, 4, ENC_BIG_ENDIAN);
			proto_tree_add_item(pkt_s_tree, hf_dhcp_cl_ietf_ccc_dev_realm_unc_key_max_timeout, tvb, suboptoff + 4, 4, ENC_BIG_ENDIAN);
			proto_tree_add_item(pkt_s_tree, hf_dhcp_cl_ietf_ccc_dev_realm_unc_key_max_retries, tvb, suboptoff + 8, 4, ENC_BIG_ENDIAN);
		}
		suboptoff += subopt_len;
		break;

	case PKT_CCC_IETF_AP_KRB:
		proto_item_append_text(vti, "(%u byte%s%s)", subopt_len,
				       plurality(subopt_len, "", "s"),
				       subopt_len != 12 ? " [Invalid]" : "");
		if (subopt_len == 12) {
			pkt_s_tree = proto_item_add_subtree(vti, ett_dhcp_option);
			proto_tree_add_item(pkt_s_tree, hf_dhcp_cl_ietf_ccc_dev_prov_unc_key_nom_timeout, tvb, suboptoff, 4, ENC_BIG_ENDIAN);
			proto_tree_add_item(pkt_s_tree, hf_dhcp_cl_ietf_ccc_dev_prov_unc_key_max_timeout, tvb, suboptoff + 4, 4, ENC_BIG_ENDIAN);
			proto_tree_add_item(pkt_s_tree, hf_dhcp_cl_ietf_ccc_dev_prov_unc_key_max_retries, tvb, suboptoff + 8, 4, ENC_BIG_ENDIAN);
		}
		suboptoff += subopt_len;
		break;

	case PKT_CCC_KRB_REALM: /* String values */
		get_dns_name(tvb, suboptoff, subopt_len, suboptoff, (const gchar **)&dns_name, &dns_name_len);
		proto_item_append_text(vti, "%s (%u byte%s)", format_text(pinfo->pool, dns_name, dns_name_len),
				       subopt_len, plurality(subopt_len, "", "s") );
		suboptoff += subopt_len;
		break;

	case PKT_CCC_TGT_FLAG:
		if (suboptoff+1 > optend) {
			expert_add_info(pinfo, vti, &ei_dhcp_missing_subopt_value);
			return (optend);
		}
		fetch_tgt = tvb_get_guint8(tvb, suboptoff);
		proto_item_append_text(vti, "%s (%u byte%s%s)",
				       fetch_tgt ? "Yes" : "No",
				       subopt_len,
				       plurality(subopt_len, "", "s"),
				       subopt_len != 1 ? " [Invalid]" : "");
		suboptoff += 1;
		break;

	case PKT_CCC_PROV_TIMER:
		if (suboptoff+1 > optend) {
			expert_add_info(pinfo, vti, &ei_dhcp_missing_subopt_value);
			return (optend);
		}
		if (revision == PACKETCABLE_CCC_DRAFT5)
			max_timer_val = 30;
		timer_val = tvb_get_guint8(tvb, suboptoff);
		proto_item_append_text(vti, "%u%s (%u byte%s%s)", timer_val,
				       timer_val > max_timer_val ? " [Invalid]" : "",
				       subopt_len,
				       plurality(subopt_len, "", "s"),
				       subopt_len != 1 ? " [Invalid]" : "");
		suboptoff += 1;
		break;

	case PKT_CCC_IETF_SEC_TKT:
		if (suboptoff+2 > optend) {
			expert_add_info(pinfo, vti, &ei_dhcp_missing_subopt_value);
			return (optend);
		}
		sec_tcm = tvb_get_ntohs(tvb, suboptoff);
		proto_item_append_text(vti, "0x%04x (%u byte%s%s)", sec_tcm, subopt_len,
				       plurality(subopt_len, "", "s"),
				       subopt_len != 2 ? " [Invalid]" : "");
		if (subopt_len == 2) {
			pkt_s_tree = proto_item_add_subtree(vti, ett_dhcp_option);
			proto_tree_add_boolean(pkt_s_tree, hf_dhcp_ccc_ietf_sec_tkt_pc_provision_server, tvb, suboptoff, 2, sec_tcm);
			proto_tree_add_boolean(pkt_s_tree, hf_dhcp_ccc_ietf_sec_tkt_all_pc_call_management, tvb, suboptoff, 2, sec_tcm);
		}
		suboptoff += subopt_len;
		break;

	default:
		suboptoff += subopt_len;
		break;
	}
	return suboptoff;
}

static int
dissect_dhcpopt_packetcable_ccc(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, void* data _U_)
{
	int offset = 0;

	while (tvb_reported_length_remaining(tvb, offset) > 0) {
		switch (pkt_ccc_protocol_version) {

		case PACKETCABLE_CCC_I05:
			offset = dissect_packetcable_i05_ccc(pinfo, tree, tree, tvb, offset, tvb_reported_length(tvb));
			break;
		case PACKETCABLE_CCC_DRAFT5:
		case PACKETCABLE_CCC_RFC_3495:
			offset = dissect_packetcable_ietf_ccc(pinfo, tree, tree, tvb, offset, tvb_reported_length(tvb), pkt_ccc_protocol_version);
			break;
		default: /* XXX Should we do something here? */
			break;
		}
	}

	return tvb_captured_length(tvb);
}

#define BOOTREQUEST	1
#define BOOTREPLY	2

static const value_string op_vals[] = {
	{ BOOTREQUEST,	"Boot Request" },
	{ BOOTREPLY,	"Boot Reply" },
	{ 0,		NULL }
};

static int
dissect_dhcp(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, void* data _U_)
{
	proto_tree   *bp_tree;
	proto_item   *bp_ti, *ti;
	proto_item   *fi, *hidden_item;
	guint8	      op;
	guint8	      htype, hlen;
	int	      voff, eoff, tmpvoff; /* vendor offset, end offset */
	guint32	      ip_addr;
	gboolean      at_end;
	gboolean      isProxyDhcp;
	const char   *dhcp_type				     = NULL;
	const guint8 *vendor_class_id			     = NULL;
	guint16	      flags, secs;
	int	      offset_delta;
	guint8	      overload				     = 0; /* DHCP option overload */
	static int * const dhcp_flags[] = {
		&hf_dhcp_flags_broadcast,
		&hf_dhcp_flags_reserved,
		NULL
	};

	rfc3396_dns_domain_search_list.total_number_of_block = 0;
	rfc3396_dns_domain_search_list.tvb_composite	     = NULL;
	rfc3396_sip_server.total_number_of_block	     = 0;
	rfc3396_sip_server.tvb_composite		     = NULL;

	if (pinfo->srcport == PROXYDHCP_UDP_PORT ||
	    pinfo->destport == PROXYDHCP_UDP_PORT) {
		/* The "DHCP magic" is mandatory for proxyDHCP. Use it as a heuristic. */
		if (!tvb_bytes_exist(tvb, VENDOR_INFO_OFFSET, 4) ||
		    tvb_get_ntohl(tvb, VENDOR_INFO_OFFSET) != 0x63825363) {
	 /* Not a DHCP packet at all. */
			return 0;
		}
		isProxyDhcp = TRUE;
	} else {
		isProxyDhcp = FALSE;
	}

	col_set_str(pinfo->cinfo, COL_PROTOCOL, "BOOTP");
	/*
	 * In case we throw an exception fetching the opcode, etc.
	 */
	col_clear(pinfo->cinfo, COL_INFO);

	op = tvb_get_guint8(tvb, 0);
	htype = tvb_get_guint8(tvb, 1);
	hlen = tvb_get_guint8(tvb, 2);
	switch (op) {

	case BOOTREQUEST:
		if ((htype == ARPHRD_ETHER || htype == ARPHRD_IEEE802)
		    && hlen == 6) {
			col_add_fstr(pinfo->cinfo, COL_INFO, "Boot Request from %s (%s)",
				     tvb_arphrdaddr_to_str(pinfo->pool, tvb, 28, hlen, htype),
				     tvb_get_ether_name(tvb, 28));
		}
		else {
			col_add_fstr(pinfo->cinfo, COL_INFO, "Boot Request from %s",
				     tvb_arphrdaddr_to_str(pinfo->pool, tvb, 28, hlen, htype));
		}
		break;

	case BOOTREPLY:
		col_set_str(pinfo->cinfo, COL_INFO, "Boot Reply");
		break;

	default:
		col_add_fstr(pinfo->cinfo, COL_INFO, "Unknown BOOTP message type (%u)", op);
		break;
	}

	voff = VENDOR_INFO_OFFSET;

	/* rfc2132 says it SHOULD exist, not that it MUST exist */
	if (tvb_bytes_exist(tvb, voff, 4) &&
	    (tvb_get_ntohl(tvb, voff) == 0x63825363)) {
		voff += 4;
	} else {
		voff += 64;
	}
	eoff = tvb_reported_length(tvb);

	bp_ti = proto_tree_add_item(tree, proto_dhcp, tvb, 0, -1, ENC_NA);
	bp_tree = proto_item_add_subtree(bp_ti, ett_dhcp);

	/*
	 * In the first pass, we just look for the DHCP message type
	 * and Vendor class identifier options.
	 */
	tmpvoff = voff;
	at_end = FALSE;
	rfc3396_dns_domain_search_list.index_current_block = 0;
	rfc3396_sip_server.index_current_block = 0;
	while (tmpvoff < eoff && !at_end) {
		offset_delta = dhcp_option(tvb, pinfo, NULL, tmpvoff, eoff, TRUE, &at_end,
		    &dhcp_type, &vendor_class_id, &overload);
		if (offset_delta <= 0) {
			proto_tree_add_expert(bp_tree, pinfo, &ei_dhcp_option_parse_err,
					tvb, tmpvoff, eoff);
			return tmpvoff;
		}
		tmpvoff += offset_delta;
	}

	/*
	 * If there was a DHCP message type option, flag this packet
	 * as DHCP.
	 */
	if (dhcp_type != NULL) {
		/*
		 * Yes, this is a DHCP packet, and "dhcp_type" is the
		 * packet type.
		 */
		col_set_str(pinfo->cinfo, COL_PROTOCOL, "DHCP");

		col_add_fstr(pinfo->cinfo, COL_INFO, "%sDHCP %-8s - Transaction ID 0x%x",
			     isProxyDhcp ? "proxy" : "", dhcp_type, tvb_get_ntohl(tvb, 4));
		tap_queue_packet( dhcp_bootp_tap, pinfo, dhcp_type);
	}

	/*
	 * OK, now populate the protocol tree.
	 */

	proto_tree_add_uint(bp_tree, hf_dhcp_type, tvb,
				   0, 1,
				   op);
	proto_tree_add_item(bp_tree, hf_dhcp_hw_type, tvb,
					 1, 1, ENC_BIG_ENDIAN);
	proto_tree_add_uint(bp_tree, hf_dhcp_hw_len, tvb,
			    2, 1, hlen);
	proto_tree_add_item(bp_tree, hf_dhcp_hops, tvb,
			    3, 1, ENC_BIG_ENDIAN);
	proto_tree_add_item(bp_tree, hf_dhcp_id, tvb,
			    4, 4, ENC_BIG_ENDIAN);
	/*
	 * Windows (98, XP and Vista tested) sends the "secs" value on
	 * the wire formatted as little-endian. See if the LE value
	 * makes sense, if autodetect is used.
	 */
	if (dhcp_secs_endian == DHCP_SECS_ENDIAN_AUTODETECT) {
		secs = tvb_get_letohs(tvb, 8);
		if (secs > 0 && secs <= 0xff) {
			ti = proto_tree_add_uint(bp_tree, hf_dhcp_secs, tvb, 8, 2, secs);
			expert_add_info_format(pinfo, ti, &ei_dhcp_secs_le, "Seconds elapsed appears to be encoded as little-endian");
		} else {
			proto_tree_add_item(bp_tree, hf_dhcp_secs, tvb,
					8, 2, ENC_BIG_ENDIAN);
		}
	}
	else {
		/* Use whatever endianness is configured */
		proto_tree_add_item(bp_tree, hf_dhcp_secs, tvb, 8, 2, dhcp_secs_endian);
	}
	flags = tvb_get_ntohs(tvb, 10);
	fi = proto_tree_add_bitmask(bp_tree, tvb, 10, hf_dhcp_flags,
			       ett_dhcp_flags, dhcp_flags, ENC_NA);
	proto_item_append_text(fi, " (%s)",
	    (flags & BOOTP_BC) ? "Broadcast" : "Unicast");

	proto_tree_add_item(bp_tree, hf_dhcp_ip_client, tvb,
			    12, 4, ENC_BIG_ENDIAN);
	proto_tree_add_item(bp_tree, hf_dhcp_ip_your, tvb,
			    16, 4, ENC_BIG_ENDIAN);
	proto_tree_add_item(bp_tree, hf_dhcp_ip_server, tvb,
			    20, 4, ENC_BIG_ENDIAN);
	proto_tree_add_item(bp_tree, hf_dhcp_ip_relay, tvb,
			    24, 4, ENC_BIG_ENDIAN);

	if (hlen > 0 && hlen <= 16) {
		if ((htype == ARPHRD_ETHER || htype == ARPHRD_IEEE802)
		    && hlen == 6)
			proto_tree_add_item(bp_tree, hf_dhcp_hw_ether_addr, tvb, 28, 6, ENC_NA);
		else
			/* The chaddr element is 16 bytes in length,
			   although only the first hlen bytes are used */
			proto_tree_add_bytes_format_value(bp_tree, hf_dhcp_hw_addr, tvb, 28, 16,
					   NULL, "%s", tvb_arphrdaddr_to_str(pinfo->pool, tvb, 28, hlen, htype));
		if ((16 - hlen) > 0)
			proto_tree_add_item(bp_tree, hf_dhcp_hw_addr_padding, tvb, 28+hlen, 16-hlen, ENC_NA);
	} else {
		proto_tree_add_expert(bp_tree, pinfo, &ei_dhcp_client_address_not_given, tvb, 28, 16);
	}

	if (overload & OPT_OVERLOAD_SNAME) {
		proto_tree_add_expert(bp_tree, pinfo, &ei_dhcp_server_name_overloaded_by_dhcp, tvb,
			SERVER_NAME_OFFSET, SERVER_NAME_LEN);
	} else {
		/* The server host name is optional */
		if (tvb_get_guint8(tvb, SERVER_NAME_OFFSET) != '\0') {
			proto_tree_add_item(bp_tree, hf_dhcp_server, tvb,
					   SERVER_NAME_OFFSET,
					   SERVER_NAME_LEN, ENC_ASCII);

		} else {
			proto_tree_add_string_format(bp_tree, hf_dhcp_server, tvb,
						   SERVER_NAME_OFFSET,
						   SERVER_NAME_LEN,
						   "", "Server host name not given");
		}
	}

	if (overload & OPT_OVERLOAD_FILE) {
		proto_tree_add_expert(bp_tree, pinfo, &ei_dhcp_boot_filename_overloaded_by_dhcp, tvb,
			FILE_NAME_OFFSET, FILE_NAME_LEN);
	} else {
		/* Boot file is optional */
		if (tvb_get_guint8(tvb, FILE_NAME_OFFSET) != '\0') {
			proto_tree_add_item(bp_tree, hf_dhcp_file, tvb,
					   FILE_NAME_OFFSET,
					   FILE_NAME_LEN, ENC_ASCII);
		} else {
			proto_tree_add_string_format(bp_tree, hf_dhcp_file, tvb,
						   FILE_NAME_OFFSET,
						   FILE_NAME_LEN,
						   "", "Boot file name not given");
		}
	}

	voff = VENDOR_INFO_OFFSET;
	if (dhcp_type == NULL) {
		hidden_item = proto_tree_add_boolean(bp_tree, hf_dhcp_bootp, tvb, 0, 0, 1);
		proto_item_set_hidden(hidden_item);
	}
	if (tvb_bytes_exist(tvb, voff, 4) &&
	    (tvb_get_ntohl(tvb, voff) == 0x63825363)) {
		ip_addr = tvb_get_ipv4(tvb, voff);
		proto_tree_add_ipv4_format_value(bp_tree, hf_dhcp_cookie, tvb,
			voff, 4, ip_addr, "DHCP");
		voff += 4;
	} else {
		proto_tree_add_item(bp_tree, hf_dhcp_vendor_specific_options, tvb,
			voff, 64, ENC_NA);
		voff += 64;
	}

	at_end = FALSE;
	rfc3396_dns_domain_search_list.index_current_block = 0;
	rfc3396_sip_server.index_current_block = 0;
	while (voff < eoff && !at_end) {
		offset_delta = dhcp_option(tvb, pinfo, bp_tree, voff, eoff, FALSE, &at_end,
		    &dhcp_type, &vendor_class_id, &overload);
		if (offset_delta <= 0) {
			proto_tree_add_expert(bp_tree, pinfo, &ei_dhcp_option_parse_err,
					tvb, voff, eoff);
			return voff;
		}
		voff += offset_delta;
	}
	if ((dhcp_type != NULL) && (!at_end))
	{
		expert_add_info(pinfo, bp_ti, &ei_dhcp_end_option_missing);
	}
	if (voff < eoff) {
		/*
		 * Padding after the end option.
		 */
		proto_tree_add_item(bp_tree, hf_dhcp_option_padding, tvb, voff, eoff - voff, ENC_NA);
	}

	return tvb_captured_length(tvb);
}

static void
dhcp_init_protocol(void)
{
	guint i;

	/* first copy default_dhcp_opt[] to dhcp_opt[].  This resets all values to default */
	memcpy(dhcp_opt, default_dhcp_opt, sizeof(dhcp_opt));

	if ((num_dhcp_records_uat > 0) && (saved_uat_opts == NULL))
	{
		saved_uat_opts = wmem_list_new(NULL);
	}

	/* Now apply the custom options */
	for (i = 0; i < num_dhcp_records_uat; i++)
	{
		dhcp_opt[uat_dhcp_records[i].opt].text = wmem_strdup(wmem_file_scope(), uat_dhcp_records[i].text);
		dhcp_opt[uat_dhcp_records[i].opt].ftype = uat_dhcp_records[i].ftype;
		dhcp_opt[uat_dhcp_records[i].opt].phf = NULL;

		/* Apply the custom option to the dissection table*/
		dissector_change_uint("dhcp.option", uat_dhcp_records[i].opt, dhcpopt_basic_handle);

		/* Save the option so it can be cleared later */
		wmem_list_append(saved_uat_opts, GUINT_TO_POINTER(uat_dhcp_records[i].opt));
	}
}

static void
dhcp_clear_uat_dhcpopt(gpointer data, gpointer user_data _U_)
{
	dissector_reset_uint("dhcp.option", GPOINTER_TO_UINT(data));
}

static void
dhcp_cleanup_protocol(void)
{
	if (saved_uat_opts != NULL) {
		wmem_list_foreach(saved_uat_opts, dhcp_clear_uat_dhcpopt,
		    NULL);

		wmem_destroy_list(saved_uat_opts);
		saved_uat_opts = NULL;
	}
}


/* TAP STAT INFO */
typedef enum
{
	MESSAGE_TYPE_COLUMN = 0,
	PACKET_COLUMN
} dhcp_stat_columns;

static stat_tap_table_item dhcp_stat_fields[] = {{TABLE_ITEM_STRING, TAP_ALIGN_LEFT, "DHCP Message Type", "%-25s"}, {TABLE_ITEM_UINT, TAP_ALIGN_RIGHT, "Packets", "%d"}};

static void dhcp_stat_init(stat_tap_table_ui* new_stat)
{
	const char *table_name = "DHCP Statistics";
	int num_fields = sizeof(dhcp_stat_fields)/sizeof(stat_tap_table_item);
	stat_tap_table *table;
	int i = 0;
	stat_tap_table_item_type items[sizeof(dhcp_stat_fields)/sizeof(stat_tap_table_item)];

	table = stat_tap_find_table(new_stat, table_name);
	if (table) {
		if (new_stat->stat_tap_reset_table_cb) {
			new_stat->stat_tap_reset_table_cb(table);
		}
		return;
	}

	table = stat_tap_init_table(table_name, num_fields, 0, NULL);
	stat_tap_add_table(new_stat, table);

	memset(items, 0x0, sizeof(items));
	/* Add a row for each value type */
	while (opt53_text[i].strptr)
	{
		items[MESSAGE_TYPE_COLUMN].type = TABLE_ITEM_STRING;
		items[MESSAGE_TYPE_COLUMN].value.string_value = opt53_text[i].strptr;
		items[PACKET_COLUMN].type = TABLE_ITEM_UINT;
		items[PACKET_COLUMN].value.uint_value = 0;

		stat_tap_init_table_row(table, i, num_fields, items);
		i++;
	}
}

static tap_packet_status
dhcp_stat_packet(void *tapdata, packet_info *pinfo _U_, epan_dissect_t *edt _U_, const void *data, tap_flags_t flags _U_)
{
	stat_data_t* stat_data = (stat_data_t*)tapdata;
	const char* value = (const char*)data;
	stat_tap_table* table;
	stat_tap_table_item_type* msg_data;
	gint idx;

	idx = str_to_val_idx(value, opt53_text);
	if (idx < 0)
		return TAP_PACKET_DONT_REDRAW;

	table = g_array_index(stat_data->stat_tap_data->tables, stat_tap_table*, 0);
	msg_data = stat_tap_get_field_data(table, idx, PACKET_COLUMN);
	msg_data->value.uint_value++;
	stat_tap_set_field_data(table, idx, PACKET_COLUMN, msg_data);

	return TAP_PACKET_REDRAW;
}

static void
dhcp_stat_reset(stat_tap_table* table)
{
	guint element;
	stat_tap_table_item_type* item_data;

	for (element = 0; element < table->num_elements; element++)
	{
		item_data = stat_tap_get_field_data(table, element, PACKET_COLUMN);
		item_data->value.uint_value = 0;
		stat_tap_set_field_data(table, element, PACKET_COLUMN, item_data);
	}
}

void
proto_register_dhcp(void)
{
	static const value_string dhcp_custom_type_vals[] = {
		{ ipv4,		    "IP Address"},
		{ ipv4_list,	    "IP Address List" },
		{ string,	    "string" },
		{ bytes,	    "bytes" },
		{ val_boolean,	    "boolean" },
		{ val_u_byte,	    "byte" },
		{ val_u_short,	    "unsigned short" },
		{ val_u_short_list, "unsigned short list" },
		{ val_u_long,	    "unsigned long" },
		{ time_in_s_secs,   "integer time in seconds" },
		{ time_in_u_secs,   "unsigned integer time in seconds" },
		{ 0x00, NULL }
	};

	static hf_register_info hf[] = {
		{ &hf_dhcp_bootp,
		  { "Frame is BOOTP", "dhcp.bootp",
		    FT_BOOLEAN, BASE_NONE, NULL, 0x0,
		    NULL, HFILL }},

		{ &hf_dhcp_type,
		  { "Message type", "dhcp.type",
		    FT_UINT8, BASE_DEC, VALS(op_vals), 0x0,
		    NULL, HFILL }},

		{ &hf_dhcp_hw_type,
		  { "Hardware type", "dhcp.hw.type",
		    FT_UINT8, BASE_HEX, VALS(arp_hrd_vals), 0x0,
		    NULL, HFILL }},

		{ &hf_dhcp_hw_len,
		  { "Hardware address length", "dhcp.hw.len",
		    FT_UINT8, BASE_DEC, NULL, 0x0,
		    NULL, HFILL }},

		{ &hf_dhcp_hops,
		  { "Hops", "dhcp.hops",
		    FT_UINT8, BASE_DEC, NULL, 0x0,
		    NULL, HFILL }},

		{ &hf_dhcp_id,
		  { "Transaction ID", "dhcp.id",
		    FT_UINT32, BASE_HEX, NULL, 0x0,
		    NULL, HFILL }},

		{ &hf_dhcp_secs,
		  { "Seconds elapsed", "dhcp.secs",
		    FT_UINT16, BASE_DEC, NULL, 0x0,
		    NULL, HFILL }},

		{ &hf_dhcp_flags,
		  { "Bootp flags", "dhcp.flags",
		    FT_UINT16, BASE_HEX, NULL, 0x0,
		    NULL, HFILL }},

		{ &hf_dhcp_flags_broadcast,
		  { "Broadcast flag", "dhcp.flags.bc",
		    FT_BOOLEAN, 16, TFS(&flag_set_broadcast), BOOTP_BC,
		    NULL, HFILL }},

		{ &hf_dhcp_flags_reserved,
		  { "Reserved flags", "dhcp.flags.reserved",
		    FT_UINT16, BASE_HEX, NULL, BOOTP_MBZ,
		    NULL, HFILL }},

		{ &hf_dhcp_ip_client,
		  { "Client IP address", "dhcp.ip.client",
		    FT_IPv4, BASE_NONE, NULL, 0x0,
		    NULL, HFILL }},

		{ &hf_dhcp_ip_your,
		  { "Your (client) IP address", "dhcp.ip.your",
		    FT_IPv4, BASE_NONE, NULL, 0x0,
		    NULL, HFILL }},

		{ &hf_dhcp_ip_server,
		  { "Next server IP address", "dhcp.ip.server",
		    FT_IPv4, BASE_NONE, NULL, 0x0,
		    NULL, HFILL }},

		{ &hf_dhcp_ip_relay,
		  { "Relay agent IP address", "dhcp.ip.relay",
		    FT_IPv4, BASE_NONE, NULL, 0x0,
		    NULL, HFILL }},

		{ &hf_dhcp_hw_addr,
		  { "Client hardware address", "dhcp.hw.addr",
		    FT_BYTES, BASE_NONE, NULL, 0x0,
		    NULL, HFILL }},

		{ &hf_dhcp_hw_addr_padding,
		  { "Client hardware address padding", "dhcp.hw.addr_padding",
		    FT_BYTES, BASE_NONE, NULL, 0x0,
		    NULL, HFILL }},

		{ &hf_dhcp_hw_ether_addr,
		  { "Client MAC address", "dhcp.hw.mac_addr",
		    FT_ETHER, BASE_NONE, NULL, 0x0,
		    NULL, HFILL }},

		{ &hf_dhcp_server,
		  { "Server host name", "dhcp.server",
		    FT_STRING, BASE_NONE, NULL, 0x0,
		    NULL, HFILL }},

		{ &hf_dhcp_file,
		  { "Boot file name", "dhcp.file",
		    FT_STRING, BASE_NONE, NULL, 0x0,
		    NULL, HFILL }},

		{ &hf_dhcp_cookie,
		  { "Magic cookie", "dhcp.cookie",
		    FT_IPv4, BASE_NONE, NULL, 0x0,
		    NULL, HFILL }},

		{ &hf_dhcp_vendor_specific_options,
		  { "Bootp vendor specific options", "dhcp.vendor_specific_options",
		    FT_BYTES, BASE_NONE, NULL, 0x0,
		    NULL, HFILL }},

		{ &hf_dhcp_fqdn_s,
		  { "Server", "dhcp.fqdn.s",
			FT_BOOLEAN, 8, TFS(&tfs_server_client), F_FQDN_S,
		    "If true, server should do DDNS update", HFILL }},

		{ &hf_dhcp_fqdn_o,
		  { "Server overrides", "dhcp.fqdn.o",
		    FT_BOOLEAN, 8, TFS(&tfs_fqdn_o), F_FQDN_O,
		    "If true, server insists on doing DDNS update", HFILL }},

		{ &hf_dhcp_fqdn_e,
		  { "Encoding", "dhcp.fqdn.e",
		    FT_BOOLEAN, 8, TFS(&tfs_fqdn_e), F_FQDN_E,
		    "If true, name is binary encoded", HFILL }},

		{ &hf_dhcp_fqdn_n,
		  { "Server DDNS", "dhcp.fqdn.n",
		    FT_BOOLEAN, 8, TFS(&tfs_fqdn_n), F_FQDN_N,
		    "If true, server should not do any DDNS updates", HFILL }},

		{ &hf_dhcp_fqdn_flags,
		  { "Flags", "dhcp.fqdn.flags",
		    FT_UINT8, BASE_HEX, NULL, 0,
		    NULL, HFILL }},

		{ &hf_dhcp_fqdn_mbz,
		  { "Reserved flags", "dhcp.fqdn.mbz",
		    FT_UINT8, BASE_HEX, NULL, F_FQDN_MBZ,
		    NULL, HFILL }},

		{ &hf_dhcp_fqdn_rcode1,
		  { "A-RR result", "dhcp.fqdn.rcode1",
		    FT_UINT8, BASE_DEC, NULL, 0x0,
		    "Result code of A-RR update", HFILL }},

		{ &hf_dhcp_fqdn_rcode2,
		  { "PTR-RR result", "dhcp.fqdn.rcode2",
		    FT_UINT8, BASE_DEC, NULL, 0x0,
		    "Result code of PTR-RR update", HFILL }},

		{ &hf_dhcp_fqdn_name,
		  { "Client name", "dhcp.fqdn.name",
		    FT_STRING, BASE_NONE, NULL, 0x0,
		    "Name to register via DDNS", HFILL }},

		{ &hf_dhcp_fqdn_asciiname,
		  { "Client name", "dhcp.fqdn.name",
		    FT_STRING, BASE_NONE, NULL, 0x0,
		    "Name to register via DDNS", HFILL }},

		{ &hf_dhcp_pkt_mta_cap_len,
		  { "MTA DC Length", "dhcp.vendor.pktc.mta_cap_len",
		    FT_UINT16, BASE_DEC, NULL, 0x0,
		    "PacketCable MTA Device Capabilities Length", HFILL }},

		{ &hf_dhcp_pkt_mta_cap_type,
		  { "Type", "dhcp.vendor.pktc.mta_cap_type",
		    FT_UINT16, BASE_DEC, VALS(pkt_mdc_type_vals), 0x0,
		    NULL, HFILL }},

		{ &hf_dhcp_pkt_mdc_supp_flow_secure,
		  { "Secure Flow (Full Secure Provisioning Flow)", "dhcp.vendor.pktc.mdc.supp_flow.secure",
		    FT_BOOLEAN, 16, TFS(&tfs_supported_not_supported), 0x0001,
		    NULL, HFILL }},

		{ &hf_dhcp_pkt_mdc_supp_flow_hybrid,
		  { "Hybrid Flow", "dhcp.vendor.pktc.mdc.supp_flow.hybrid",
		    FT_BOOLEAN, 16, TFS(&tfs_supported_not_supported), 0x0002,
		    NULL, HFILL }},

		{ &hf_dhcp_pkt_mdc_supp_flow_basic,
		  { "Basic Flow", "dhcp.vendor.pktc.mdc.supp_flow.basic",
		    FT_BOOLEAN, 16, TFS(&tfs_supported_not_supported), 0x0004,
		    NULL, HFILL }},

		{ &hf_dhcp_pkt_mdc_mib_cl_mta,
		  { "PacketCable 1.5 MTA MIB", "dhcp.vendor.pktc.mdc_cl.mib.mta",
		    FT_BOOLEAN, 8, TFS(&tfs_present_not_present), 0x01,
		    NULL, HFILL }},

		{ &hf_dhcp_pkt_mdc_mib_cl_signaling,
		  { "PacketCable 1.5 Signaling MIB", "dhcp.vendor.pktc.mdc_cl.mib.signaling",
		    FT_BOOLEAN, 8, TFS(&tfs_present_not_present), 0x02,
		    NULL, HFILL }},

		{ &hf_dhcp_pkt_mdc_mib_cl_management_event,
		  { "PacketCable 1.5 Management Event MIB", "dhcp.vendor.pktc.mdc_cl.mib.management_event",
		    FT_BOOLEAN, 8, TFS(&tfs_present_not_present), 0x04,
		    NULL, HFILL }},

		{ &hf_dhcp_pkt_mdc_mib_cl_mta_extension,
		  { "PacketCable 1.5 MTA Extension MIB", "dhcp.vendor.pktc.mdc_cl.mib.mta_extension",
		    FT_BOOLEAN, 8, TFS(&tfs_present_not_present), 0x08,
		    NULL, HFILL }},

		{ &hf_dhcp_pkt_mdc_mib_cl_mta_signaling_extension,
		  { "PacketCable 1.5 Signaling Extension MIB", "dhcp.vendor.pktc.mdc_cl.mib.signaling_extension",
		    FT_BOOLEAN, 8, TFS(&tfs_present_not_present), 0x10,
		    NULL, HFILL }},

		{ &hf_dhcp_pkt_mdc_mib_cl_mta_mem_extension,
		  { "PacketCable 1.5 MEM Extension MIB", "dhcp.vendor.pktc.mdc_cl.mib.mem_extension",
		    FT_BOOLEAN, 8, TFS(&tfs_present_not_present), 0x20,
		    NULL, HFILL }},

		{ &hf_dhcp_pkt_mdc_mib_cl_reserved,
		  { "Reserved", "dhcp.vendor.pktc.mdc_cl.mib.reserved",
		    FT_UINT8, BASE_HEX, NULL, 0xC0,
		    NULL, HFILL }},

		{ &hf_dhcp_pkt_mdc_mib_ietf_mta,
		  { "IETF MTA MIB", "dhcp.vendor.pktc.mdc_ietf.mib.mta",
		    FT_BOOLEAN, 8, TFS(&tfs_present_not_present), 0x01,
		    NULL, HFILL }},

		{ &hf_dhcp_pkt_mdc_mib_ietf_signaling,
		  { "IETF Signaling MIB", "dhcp.vendor.pktc.mdc_ietf.mib.signaling",
		    FT_BOOLEAN, 8, TFS(&tfs_present_not_present), 0x02,
		    NULL, HFILL }},

		{ &hf_dhcp_pkt_mdc_mib_ietf_management_event,
		  { "IETF Management Event MIB", "dhcp.vendor.pktc.mdc_ietf.mib.management_event",
		    FT_BOOLEAN, 8, TFS(&tfs_present_not_present), 0x04,
		    NULL, HFILL }},

		{ &hf_dhcp_pkt_mdc_mib_ietf_reserved,
		  { "Reserved", "dhcp.vendor.pktc.mdc_ietf.mib.reserved",
		    FT_UINT8, BASE_HEX, NULL, 0xF8,
		    NULL, HFILL }},

		{ &hf_dhcp_pkt_mdc_mib_euro_mta,
		  { "PacketCable 1.5 MTA MIB", "dhcp.vendor.pktc.mdc_euro.mib.mta",
		    FT_BOOLEAN, 8, TFS(&tfs_present_not_present), 0x01,
		    NULL, HFILL }},

		{ &hf_dhcp_pkt_mdc_mib_euro_signaling,
		  { "PacketCable 1.5 Signaling MIB", "dhcp.vendor.pktc.mdc_euro.mib.signaling",
		    FT_BOOLEAN, 8, TFS(&tfs_present_not_present), 0x02,
		    NULL, HFILL }},

		{ &hf_dhcp_pkt_mdc_mib_euro_management_event,
		  { "PacketCable 1.5 Management Event MIB", "dhcp.vendor.pktc.mdc_euro.mib.management_event",
		    FT_BOOLEAN, 8, TFS(&tfs_present_not_present), 0x04,
		    NULL, HFILL }},

		{ &hf_dhcp_pkt_mdc_mib_euro_mta_extension,
		  { "PacketCable 1.5 MTA Extension MIB", "dhcp.vendor.pktc.mdc_euro.mib.mta_extension",
		    FT_BOOLEAN, 8, TFS(&tfs_present_not_present), 0x08,
		    NULL, HFILL }},

		{ &hf_dhcp_pkt_mdc_mib_euro_mta_signaling_extension,
		  { "PacketCable 1.5 Signaling Extension MIB", "dhcp.vendor.pktc.mdc_euro.mib.signaling_extension",
		    FT_BOOLEAN, 8, TFS(&tfs_present_not_present), 0x10,
		    NULL, HFILL }},

		{ &hf_dhcp_pkt_mdc_mib_euro_mta_mem_extension,
		  { "PacketCable 1.5 MEM Extension MIB", "dhcp.vendor.pktc.mdc_euro.mib.mem_extension",
		    FT_BOOLEAN, 8, TFS(&tfs_present_not_present), 0x20,
		    NULL, HFILL }},

		{ &hf_dhcp_pkt_mdc_mib_euro_reserved,
		  { "Reserved", "dhcp.vendor.pktc.mdc_euro.mib.reserved",
		    FT_UINT8, BASE_HEX, NULL, 0xC0,
		    NULL, HFILL }},

		{ &hf_dhcp_docsis_cm_cap_len,
		  { "CM DC Length", "dhcp.vendor.docsis.cm_cap_len",
		    FT_UINT8, BASE_DEC, NULL, 0x0,
		    "DOCSIS Cable Modem Device Capabilities Length", HFILL }},

		{ &hf_dhcp_docsis_cm_cap_type,
		  { "CM DC Type", "dhcp.docsis_cm_cap_type",
		    FT_UINT16, BASE_DEC, VALS(docsis_cm_cap_type_vals), 0x0,
		    "Docsis Cable Modem Device Capability type", HFILL }},

		{ &hf_dhcp_docsis_cm_cap_ranging_hold_off_cm,
		  { "CM", "dhcp.docsis_cm_cap.ranging_hold_off.cm",
		    FT_BOOLEAN, 16, TFS(&tfs_supported_not_supported), 0x0001,
		    NULL, HFILL }},

		{ &hf_dhcp_docsis_cm_cap_ranging_hold_off_eps,
		  { "ePS or eRouter", "dhcp.docsis_cm_cap.ranging_hold_off.eps",
		    FT_BOOLEAN, 16, TFS(&tfs_supported_not_supported), 0x0002,
		    NULL, HFILL }},

		{ &hf_dhcp_docsis_cm_cap_ranging_hold_off_emta,
		  { "EMTA or EDVA", "dhcp.docsis_cm_cap.ranging_hold_off.emta",
		    FT_BOOLEAN, 16, TFS(&tfs_supported_not_supported), 0x0004,
		    NULL, HFILL }},

		{ &hf_dhcp_docsis_cm_cap_ranging_hold_off_dsg,
		  { "DSG/eSTB", "dhcp.docsis_cm_cap.ranging_hold_off.dsg",
		    FT_BOOLEAN, 16, TFS(&tfs_supported_not_supported), 0x0008,
		    NULL, HFILL }},


		{ &hf_dhcp_docsis_cm_cap_mpls_stpid,
		  { "[IEEE 802.1ad] S-TPID", "dhcp.docsis_cm_cap.mpls.stpid",
		    FT_BOOLEAN, 32, TFS(&tfs_supported_not_supported), 0x00000001,
		    NULL, HFILL }},

		{ &hf_dhcp_docsis_cm_cap_mpls_svid,
		  { "[IEEE 802.1ad] S-VID", "dhcp.docsis_cm_cap.mpls.svid",
		    FT_BOOLEAN, 32, TFS(&tfs_supported_not_supported), 0x00000002,
		    NULL, HFILL }},

		{ &hf_dhcp_docsis_cm_cap_mpls_spcp,
		  { "[IEEE 802.1ad] S-PCP", "dhcp.docsis_cm_cap.mpls.spcp",
		    FT_BOOLEAN, 32, TFS(&tfs_supported_not_supported), 0x00000004,
		    NULL, HFILL }},

		{ &hf_dhcp_docsis_cm_cap_mpls_sdei,
		  { "[IEEE 802.1ad] S-DEI", "dhcp.docsis_cm_cap.mpls.sdei",
		    FT_BOOLEAN, 32, TFS(&tfs_supported_not_supported), 0x00000008,
		    NULL, HFILL }},

		{ &hf_dhcp_docsis_cm_cap_mpls_ctpid,
		  { "[IEEE 802.1ad] C-TPID", "dhcp.docsis_cm_cap.mpls.ctpid",
		    FT_BOOLEAN, 32, TFS(&tfs_supported_not_supported), 0x00000010,
		    NULL, HFILL }},

		{ &hf_dhcp_docsis_cm_cap_mpls_cvid,
		  { "[IEEE 802.1ad] C-VID", "dhcp.docsis_cm_cap.mpls.cvid",
		    FT_BOOLEAN, 32, TFS(&tfs_supported_not_supported), 0x00000020,
		    NULL, HFILL }},

		{ &hf_dhcp_docsis_cm_cap_mpls_cpcp,
		  { "[IEEE 802.1ad] C-PCP", "dhcp.docsis_cm_cap.mpls.cpcp",
		    FT_BOOLEAN, 32, TFS(&tfs_supported_not_supported), 0x00000040,
		    NULL, HFILL }},

		{ &hf_dhcp_docsis_cm_cap_mpls_ccfi,
		  { "[IEEE 802.1ad] C-CFI", "dhcp.docsis_cm_cap.mpls.ccfi",
		    FT_BOOLEAN, 32, TFS(&tfs_supported_not_supported), 0x00000080,
		    NULL, HFILL }},

		{ &hf_dhcp_docsis_cm_cap_mpls_stci,
		  { "[IEEE 802.1ad] S-TCI", "dhcp.docsis_cm_cap.mpls.stci",
		    FT_BOOLEAN, 32, TFS(&tfs_supported_not_supported), 0x00000100,
		    NULL, HFILL }},

		{ &hf_dhcp_docsis_cm_cap_mpls_ctci,
		  { "[IEEE 802.1ad] C-TCI", "dhcp.docsis_cm_cap.mpls.ctci",
		    FT_BOOLEAN, 32, TFS(&tfs_supported_not_supported), 0x00000200,
		    NULL, HFILL }},

		{ &hf_dhcp_docsis_cm_cap_mpls_itpid,
		  { "[IEEE 802.1ad] I-TPID", "dhcp.docsis_cm_cap.mpls.itpid",
		    FT_BOOLEAN, 32, TFS(&tfs_supported_not_supported), 0x00000400,
		    NULL, HFILL }},

		{ &hf_dhcp_docsis_cm_cap_mpls_isid,
		  { "[IEEE 802.1ad] I-SID", "dhcp.docsis_cm_cap.mpls.isid",
		    FT_BOOLEAN, 32, TFS(&tfs_supported_not_supported), 0x00000800,
		    NULL, HFILL }},

		{ &hf_dhcp_docsis_cm_cap_mpls_itci,
		  { "[IEEE 802.1ad] I-TCI", "dhcp.docsis_cm_cap.mpls.itci",
		    FT_BOOLEAN, 32, TFS(&tfs_supported_not_supported), 0x00001000,
		    NULL, HFILL }},

		{ &hf_dhcp_docsis_cm_cap_mpls_ipcp,
		  { "[IEEE 802.1ad] I-PCP", "dhcp.docsis_cm_cap.mpls.ipcp",
		    FT_BOOLEAN, 32, TFS(&tfs_supported_not_supported), 0x00002000,
		    NULL, HFILL }},

		{ &hf_dhcp_docsis_cm_cap_mpls_idei,
		  { "[IEEE 802.1ad] I-DEI", "dhcp.docsis_cm_cap.mpls.idei",
		    FT_BOOLEAN, 32, TFS(&tfs_supported_not_supported), 0x00004000,
		    NULL, HFILL }},

		{ &hf_dhcp_docsis_cm_cap_mpls_iuca,
		  { "[IEEE 802.1ad] I-UCA", "dhcp.docsis_cm_cap.mpls.iuca",
		    FT_BOOLEAN, 32, TFS(&tfs_supported_not_supported), 0x00008000,
		    NULL, HFILL }},

		{ &hf_dhcp_docsis_cm_cap_mpls_btpid,
		  { "[IEEE 802.1ad] B-TPID", "dhcp.docsis_cm_cap.mpls.btpid",
		    FT_BOOLEAN, 32, TFS(&tfs_supported_not_supported), 0x00010000,
		    NULL, HFILL }},

		{ &hf_dhcp_docsis_cm_cap_mpls_btci,
		  { "[IEEE 802.1ad] B-TCI", "dhcp.docsis_cm_cap.mpls.btci",
		    FT_BOOLEAN, 32, TFS(&tfs_supported_not_supported), 0x00020000,
		    NULL, HFILL }},

		{ &hf_dhcp_docsis_cm_cap_mpls_bpcp,
		  { "[IEEE 802.1ad] B-PCP", "dhcp.docsis_cm_cap.mpls.bpcp",
		    FT_BOOLEAN, 32, TFS(&tfs_supported_not_supported), 0x00040000,
		    NULL, HFILL }},

		{ &hf_dhcp_docsis_cm_cap_mpls_bdei,
		  { "[IEEE 802.1ad] B-DEI", "dhcp.docsis_cm_cap.mpls.bdei",
		    FT_BOOLEAN, 32, TFS(&tfs_supported_not_supported), 0x00080000,
		    NULL, HFILL }},

		{ &hf_dhcp_docsis_cm_cap_mpls_bvid,
		  { "[IEEE 802.1ad] B-VID", "dhcp.docsis_cm_cap.mpls.bvid",
		    FT_BOOLEAN, 32, TFS(&tfs_supported_not_supported), 0x00100000,
		    NULL, HFILL }},

		{ &hf_dhcp_docsis_cm_cap_mpls_bda,
		  { "[IEEE 802.1ad] B-DA", "dhcp.docsis_cm_cap.mpls.bda",
		    FT_BOOLEAN, 32, TFS(&tfs_supported_not_supported), 0x00200000,
		    NULL, HFILL }},

		{ &hf_dhcp_docsis_cm_cap_mpls_bsa,
		  { "[IEEE 802.1ad] B-SA", "dhcp.docsis_cm_cap.mpls.bsa",
		    FT_BOOLEAN, 32, TFS(&tfs_supported_not_supported), 0x00400000,
		    NULL, HFILL }},

		{ &hf_dhcp_docsis_cm_cap_mpls_tc,
		  { "MPLS TC", "dhcp.docsis_cm_cap.mpls.tc",
		    FT_BOOLEAN, 32, TFS(&tfs_supported_not_supported), 0x00800000,
		    NULL, HFILL }},

		{ &hf_dhcp_docsis_cm_cap_mpls_label,
		  { "MPLS Label", "dhcp.docsis_cm_cap.mpls.label",
		    FT_BOOLEAN, 32, TFS(&tfs_supported_not_supported), 0x01000000,
		    NULL, HFILL }},


		{ &hf_dhcp_docsis_cm_cap_ussymrate_160,
		  { "160 ksps symbol rate", "dhcp.docsis_cm_cap.ussymrate.160",
		    FT_BOOLEAN, 8, TFS(&tfs_supported_not_supported), 0x01,
		    NULL, HFILL }},

		{ &hf_dhcp_docsis_cm_cap_ussymrate_320,
		  { "320 ksps symbol rate", "dhcp.docsis_cm_cap.ussymrate.320",
		    FT_BOOLEAN, 8, TFS(&tfs_supported_not_supported), 0x02,
		    NULL, HFILL }},

		{ &hf_dhcp_docsis_cm_cap_ussymrate_640,
		  { "640 ksps symbol rate", "dhcp.docsis_cm_cap.ussymrate.640",
		    FT_BOOLEAN, 8, TFS(&tfs_supported_not_supported), 0x04,
		    NULL, HFILL }},

		{ &hf_dhcp_docsis_cm_cap_ussymrate_1280,
		  { "1280 ksps symbol rate", "dhcp.docsis_cm_cap.ussymrate.1280",
		    FT_BOOLEAN, 8, TFS(&tfs_supported_not_supported), 0x08,
		    NULL, HFILL }},

		{ &hf_dhcp_docsis_cm_cap_ussymrate_2560,
		  { "2560 ksps symbol rate", "dhcp.docsis_cm_cap.ussymrate.2560",
		    FT_BOOLEAN, 8, TFS(&tfs_supported_not_supported), 0x10,
		    NULL, HFILL }},

		{ &hf_dhcp_docsis_cm_cap_ussymrate_5120,
		  { "5120 ksps symbol rate", "dhcp.docsis_cm_cap.ussymrate.5120",
		    FT_BOOLEAN, 8, TFS(&tfs_supported_not_supported), 0x20,
		    NULL, HFILL }},

		{ &hf_dhcp_client_identifier_uuid,
		  { "Client Identifier (UUID)", "dhcp.client_id.uuid",
		    FT_GUID, BASE_NONE, NULL, 0x0,
		    "Client Machine Identifier (UUID)", HFILL }},

		{ &hf_dhcp_client_hardware_address,
		  { "Client hardware address", "dhcp.client_hardware_address",
		    FT_STRING, BASE_NONE, NULL, 0x0,
		    NULL, HFILL }},

		{ &hf_dhcp_client_id_iaid,
		  { "IAID", "dhcp.client_id.iaid",
		    FT_STRING, BASE_NONE, NULL, 0x0,
		    NULL, HFILL }},

		{ &hf_dhcp_client_id_duid_type,
		  { "DUID Type", "dhcp.client_id.duid_type",
		    FT_UINT16, BASE_DEC, VALS(duidtype_vals), 0x0,
		    NULL, HFILL }},

		{ &hf_dhcp_client_identifier_duid_llt_hw_type,
		  { "Hardware type", "dhcp.client_id.duid_llt_hw_type",
		    FT_UINT16, BASE_DEC, VALS(arp_hrd_vals), 0x0,
		    "Client Identifier DUID LLT Hardware type", HFILL }},

		{ &hf_dhcp_client_identifier_duid_ll_hw_type,
		  { "Hardware type", "dhcp.client_id.duid_ll_hw_type",
		    FT_UINT16, BASE_DEC, VALS(arp_hrd_vals), 0x0,
		    "Client Identifier DUID LL Hardware type", HFILL }},

		{ &hf_dhcp_client_identifier_time,
		  { "Time", "dhcp.client_id.time",
		    FT_UINT32, BASE_DEC, NULL, 0x0,
		    NULL, HFILL }},

		{ &hf_dhcp_client_identifier_link_layer_address,
		  { "Link layer address", "dhcp.client_id.link_layer_address",
		    FT_STRING, BASE_NONE, NULL, 0x0,
		    NULL, HFILL }},

		{ &hf_dhcp_client_identifier_link_layer_address_ether,
		  { "Link layer address (Ethernet)", "dhcp.client_id.link_layer_address_ether",
		    FT_ETHER, BASE_NONE, NULL, 0x0,
		    NULL, HFILL }},

		{ &hf_dhcp_client_identifier_enterprise_num,
		  { "Enterprise-number", "dhcp.client_id.enterprise_num",
		    FT_UINT32, BASE_ENTERPRISES, STRINGS_ENTERPRISES, 0x0,
		    NULL, HFILL }},

		{ &hf_dhcp_client_identifier,
		  { "Identifier", "dhcp.client_id",
		    FT_BYTES, BASE_NONE, NULL, 0x0,
		    NULL, HFILL }},

		{ &hf_dhcp_client_identifier_type,
		  { "Type", "dhcp.client_id.type",
		    FT_UINT8, BASE_DEC, NULL, 0x0,
		    NULL, HFILL }},

		{ &hf_dhcp_client_identifier_undef,
		  { "Client Identifier", "dhcp.client_id.undef",
		    FT_STRING, BASE_NONE, NULL, 0x0,
		    NULL, HFILL }},

		{ &hf_dhcp_option_type,
		  { "Option", "dhcp.option.type",
		    FT_UINT8, BASE_DEC, NULL, 0x0,
		    "DHCP/BOOTP option type", HFILL }},

		{ &hf_dhcp_option_length,
		  { "Length", "dhcp.option.length",
		    FT_UINT8, BASE_DEC, NULL, 0x0,
		    "DHCP/BOOTP option length", HFILL }},

		{ &hf_dhcp_suboption_length,
		  { "Length", "dhcp.option.suboption_length",
		    FT_UINT8, BASE_DEC, NULL, 0x0,
		    "Suboption length", HFILL }},

		{ &hf_dhcp_option_value,
		  { "Value", "dhcp.option.value",
		    FT_BYTES, BASE_NONE, NULL, 0x0,
		    "DHCP/BOOTP option value", HFILL }},

		{ &hf_dhcp_option_value_8,
		  { "Value", "dhcp.option.value.uint",
		    FT_UINT8, BASE_DEC, NULL, 0x0,
		    "8-bit DHCP/BOOTP option value", HFILL }},

		{ &hf_dhcp_option_value_16,
		  { "Value", "dhcp.option.value.uint",
		    FT_UINT16, BASE_DEC, NULL, 0x0,
		    "16-bit DHCP/BOOTP option value", HFILL }},

		{ &hf_dhcp_option_value_u32,
		  { "Value", "dhcp.option.value.uint",
		    FT_UINT32, BASE_HEX, NULL, 0x0,
		    "32-bit DHCP/BOOTP option value", HFILL }},

		{ &hf_dhcp_option_value_s_secs,
		  { "Value", "dhcp.option.value.secs",
		    FT_INT32, BASE_CUSTOM, CF_FUNC(dhcp_time_in_s_secs_fmt), 0x0,
		    "32-bit DHCP/BOOTP option value", HFILL }},

		{ &hf_dhcp_option_value_u_secs,
		  { "Value", "dhcp.option.value.usecs",
		    FT_UINT32, BASE_CUSTOM, CF_FUNC(dhcp_time_in_u_secs_fmt), 0x0,
		    "32-bit DHCP/BOOTP option value", HFILL }},

		{ &hf_dhcp_option_value_stringz,
		  { "Value", "dhcp.option.value.string",
		    FT_STRINGZ, BASE_NONE, NULL, 0x0,
		    "Z-String DHCP/BOOTP option value", HFILL }},

		{ &hf_dhcp_option_value_ip_address,
		  { "Value", "dhcp.option.value.address",
		    FT_IPv4, BASE_NONE, NULL, 0x00,
		    "IP address DHCP/BOOTP option value", HFILL }},

		{ &hf_dhcp_option_value_boolean,
		  { "Value", "dhcp.option.value.bool",
		    FT_BOOLEAN, BASE_NONE, NULL, 0x00,
		    "Boolean DHCP/BOOTP option value", HFILL }},

		{ &hf_dhcp_option_padding,
		  { "Padding", "dhcp.option.padding",
		    FT_BYTES, BASE_NONE, NULL, 0x0,
		    "Option 0: Padding", HFILL }},

		{ &hf_dhcp_option_subnet_mask,
		  { "Subnet Mask", "dhcp.option.subnet_mask",
		    FT_IPv4, BASE_NETMASK, NULL, 0x00,
		    "Option 1: Subnet Mask", HFILL }},

		{ &hf_dhcp_option_time_offset,
		  { "Time Offset", "dhcp.option.time_offset",
		    FT_INT32, BASE_CUSTOM, CF_FUNC(dhcp_time_in_s_secs_fmt), 0x0,
		    "Option 2: Time Offset", HFILL }},

		{ &hf_dhcp_option_router,
		  { "Router", "dhcp.option.router",
		    FT_IPv4, BASE_NONE, NULL, 0x00,
		    "Option 3: Router", HFILL }},

		{ &hf_dhcp_option_time_server,
		  { "Time Server", "dhcp.option.time_server",
		    FT_IPv4, BASE_NONE, NULL, 0x00,
		    "Option 4: Time Server", HFILL }},

		{ &hf_dhcp_option_name_server,
		  { "Name Server", "dhcp.option.name_server",
		    FT_IPv4, BASE_NONE, NULL, 0x00,
		    "Option 5: Name Server", HFILL }},

		{ &hf_dhcp_option_domain_name_server,
		  { "Domain Name Server", "dhcp.option.domain_name_server",
		    FT_IPv4, BASE_NONE, NULL, 0x00,
		    "Option 6: Domain Name Server", HFILL }},

		{ &hf_dhcp_option_log_server,
		  { "Log Server", "dhcp.option.log_server",
		    FT_IPv4, BASE_NONE, NULL, 0x00,
		    "Option 7: Log Server", HFILL }},

		{ &hf_dhcp_option_quotes_server,
		  { "Quotes Server", "dhcp.option.quotes_server",
		    FT_IPv4, BASE_NONE, NULL, 0x00,
		    "Option 8: Quotes Server", HFILL }},

		{ &hf_dhcp_option_lpr_server,
		  { "LPR Server", "dhcp.option.lpr_server",
		    FT_IPv4, BASE_NONE, NULL, 0x00,
		    "Option 9: LPR Server", HFILL }},

		{ &hf_dhcp_option_impress_server,
		  { "Impress Server", "dhcp.option.impress_server",
		    FT_IPv4, BASE_NONE, NULL, 0x00,
		    "Option 10: Impress Server", HFILL }},

		{ &hf_dhcp_option_resource_location_server,
		  { "Resource Location Server", "dhcp.option.resource_location_server",
		    FT_IPv4, BASE_NONE, NULL, 0x00,
		    "Option 11: Resource Location Server", HFILL }},

		{ &hf_dhcp_option_hostname,
		  { "Host Name", "dhcp.option.hostname",
		    FT_STRINGZ, BASE_NONE, NULL, 0x0,
		    "Option 12: Host Name", HFILL }},

		{ &hf_dhcp_option_boot_file_size,
		  { "Boot File Size", "dhcp.option.boot_file_size",
		    FT_UINT16, BASE_DEC, NULL, 0x0,
		    "Option 13: Boot File Size", HFILL }},

		{ &hf_dhcp_option_merit_dump_file,
		  { "Merit Dump File", "dhcp.option.merit_dump_file",
		    FT_STRINGZ, BASE_NONE, NULL, 0x0,
		    "Option 14: Merit Dump File", HFILL }},

		{ &hf_dhcp_option_domain_name,
		  { "Domain Name", "dhcp.option.domain_name",
		    FT_STRINGZ, BASE_NONE, NULL, 0x0,
		    "Option 15: Domain Name", HFILL }},

		{ &hf_dhcp_option_swap_server,
		  { "Swap Server", "dhcp.option.swap_server",
		    FT_IPv4, BASE_NONE, NULL, 0x00,
		    "Option 16: Swap Server", HFILL }},

		{ &hf_dhcp_option_root_path,
		  { "Root Path", "dhcp.option.root_path",
		    FT_STRINGZ, BASE_NONE, NULL, 0x0,
		    "Option 17: Root Path", HFILL }},

		{ &hf_dhcp_option_extension_path,
		  { "Extensions Path", "dhcp.option.extension_path",
		    FT_STRINGZ, BASE_NONE, NULL, 0x0,
		    "Option 18: Extensions Path", HFILL }},

		{ &hf_dhcp_option_ip_forwarding,
		  { "IP Forwarding", "dhcp.option.ip_forwarding",
		    FT_BOOLEAN, BASE_NONE, TFS(&tfs_enabled_disabled), 0x00,
		    "Option 19: IP Forwarding", HFILL }},

		{ &hf_dhcp_option_policy_filter_ip,
		  { "IP Address", "dhcp.option.policy_filter.ip",
		    FT_IPv4, BASE_NONE, NULL, 0x00,
		    "Option 21: IP address", HFILL }},

		{ &hf_dhcp_option_policy_filter_subnet_mask,
		  { "Subnet Mask", "dhcp.option.policy_filter.subnet_mask",
		    FT_IPv4, BASE_NETMASK, NULL, 0x00,
		    "Option 21: Subnet Mask", HFILL }},

		{ &hf_dhcp_option_non_local_source_routing,
		  { "Non-Local Source Routing", "dhcp.option.non_local_source_routing",
		    FT_BOOLEAN, BASE_NONE, TFS(&tfs_enabled_disabled), 0x00,
		    "Option 20: Non-Local Source Routing", HFILL }},

		{ &hf_dhcp_option_max_datagram_reassembly_size,
		  { "Maximum Datagram Reassembly Size", "dhcp.option.max_datagram_reassembly_size",
		    FT_UINT16, BASE_DEC, NULL, 0x0,
		    "Option 22: Maximum Datagram Reassembly Size", HFILL }},

		{ &hf_dhcp_option_default_ip_ttl,
		  { "Default IP Time-to-Live", "dhcp.option.default_ip_ttl",
		    FT_UINT8, BASE_DEC, NULL, 0x0,
		    "Option 23: Default IP Time-to-Live", HFILL }},

		{ &hf_dhcp_option_path_mtu_aging_timeout,
		  { "Path MTU Aging Timeout", "dhcp.option.path_mtu_aging_timeout",
		    FT_UINT32, BASE_CUSTOM, CF_FUNC(dhcp_time_in_u_secs_fmt), 0x0,
		    "Option 24: Path MTU Aging Timeout", HFILL }},

		{ &hf_dhcp_option_path_mtu_plateau_table_item,
		  { "Path MTU Plateau Table Item", "dhcp.option.path_mtu_plateau_table_item",
		    FT_UINT16, BASE_DEC, NULL, 0x0,
		    "Option 25: Path MTU Plateau Table Item", HFILL }},

		{ &hf_dhcp_option_interface_mtu,
		  { "Interface MTU", "dhcp.option.interface_mtu",
		    FT_UINT16, BASE_DEC, NULL, 0x0,
		    "Option 26: Interface MTU", HFILL }},

		{ &hf_dhcp_option_all_subnets_are_local,
		  { "All Subnets are Local", "dhcp.option.all_subnets_are_local",
		    FT_BOOLEAN, BASE_NONE, TFS(&tfs_yes_no), 0x00,
		    "Option 27: All Subnets are Local", HFILL }},

		{ &hf_dhcp_option_broadcast_address,
		  { "Broadcast Address", "dhcp.option.broadcast_address",
		    FT_IPv4, BASE_NONE, NULL, 0x00,
		    "Option 28: Broadcast Address", HFILL }},

		{ &hf_dhcp_option_perform_mask_discovery,
		  { "Perform Mask Discovery", "dhcp.option.perform_mask_discovery",
		    FT_BOOLEAN, BASE_NONE, TFS(&tfs_enabled_disabled), 0x00,
		    "Option 29: Perform Mask Discovery", HFILL }},

		{ &hf_dhcp_option_mask_supplier,
		  { "Mask Supplier", "dhcp.option.mask_supplier",
		    FT_BOOLEAN, BASE_NONE, TFS(&tfs_yes_no), 0x00,
		    "Option 30: Mask Supplier", HFILL }},

		{ &hf_dhcp_option_perform_router_discover,
		  { "Perform Router Discover", "dhcp.option.perform_router_discover",
		    FT_BOOLEAN, BASE_NONE, TFS(&tfs_enabled_disabled), 0x00,
		    "Option 31: Perform Router Discover", HFILL }},

		{ &hf_dhcp_option_router_solicitation_address,
		  { "Router Solicitation Address", "dhcp.option.router_solicitation_address",
		    FT_IPv4, BASE_NONE, NULL, 0x00,
		    "Option 32: Router Solicitation Address", HFILL }},

		{ &hf_dhcp_option_static_route_ip,
		  { "Destination IP Address", "dhcp.option.static_route.ip",
		    FT_IPv4, BASE_NONE, NULL, 0x00,
		    "Option 33: Destination IP address", HFILL }},

		{ &hf_dhcp_option_static_route_router,
		  { "Destination Router", "dhcp.option.static_route.router",
		    FT_IPv4, BASE_NONE, NULL, 0x00,
		    "Option 33: Destination Router", HFILL }},

		{ &hf_dhcp_option_trailer_encapsulation,
		  { "Trailer Encapsulation", "dhcp.option.trailer_encapsulation",
		    FT_BOOLEAN, BASE_NONE, TFS(&tfs_enabled_disabled), 0x00,
		    "Option 34: Trailer Encapsulation", HFILL }},

		{ &hf_dhcp_option_arp_cache_timeout,
		  { "ARP Cache Timeout", "dhcp.option.arp_cache_timeout",
		    FT_UINT32, BASE_CUSTOM, CF_FUNC(dhcp_time_in_u_secs_fmt), 0x0,
		    "Option 35: ARP Cache Timeout", HFILL }},

		{ &hf_dhcp_option_ethernet_encapsulation,
		  { "Ethernet Encapsulation", "dhcp.option.ethernet_encapsulation",
		    FT_BOOLEAN, BASE_NONE, TFS(&tfs_enabled_disabled), 0x00,
		    "Option 36: Ethernet Encapsulation", HFILL }},

		{ &hf_dhcp_option_tcp_default_ttl,
		  { "TCP Default TTL", "dhcp.option.tcp_default_ttl",
		    FT_UINT8, BASE_DEC, NULL, 0x0,
		    "Option 37: TCP Default TTL", HFILL }},

		{ &hf_dhcp_option_tcp_keepalive_interval,
		  { "TCP Keepalive Interval", "dhcp.option.tcp_keepalive_interval",
		    FT_UINT32, BASE_CUSTOM, CF_FUNC(dhcp_time_in_u_secs_fmt), 0x0,
		    "Option 38: TCP Keepalive Interval", HFILL }},

		{ &hf_dhcp_option_tcp_keepalive_garbage,
		  { "TCP Keepalive Garbage", "dhcp.option.tcp_keepalive_garbage",
		    FT_BOOLEAN, BASE_NONE, TFS(&tfs_enabled_disabled), 0x00,
		    "Option 39: TCP Keepalive Garbage", HFILL }},

		{ &hf_dhcp_option_nis_domain,
		  { "Network Information Service Domain", "dhcp.option.nis_domain",
		    FT_STRINGZ, BASE_NONE, NULL, 0x0,
		    "Option 40: Network Information Service Domain", HFILL }},

		{ &hf_dhcp_option_nis_server,
		  { "Network Information Service Server", "dhcp.option.nis_server",
		    FT_IPv4, BASE_NONE, NULL, 0x00,
		    "Option 41: Network Information Service Server", HFILL }},

		{ &hf_dhcp_option_ntp_server,
		  { "Network Time Protocol Server", "dhcp.option.ntp_server",
		    FT_IPv4, BASE_NONE, NULL, 0x00,
		    "Option 42: Network Time Protocol Server", HFILL }},


		{ &hf_dhcp_option43_value,
		  { "Value", "dhcp.option.vendor.value",
		    FT_BYTES, BASE_NONE, NULL, 0x0,
		    "Option 43: Suboption value", HFILL }},

		{ &hf_dhcp_option43_value_8,
		  { "Value", "dhcp.option.vendor.value.uint",
		    FT_UINT8, BASE_DEC, NULL, 0x0,
		    "Option 43: Suboption 8-bit value", HFILL }},

		{ &hf_dhcp_option43_value_32,
		  { "Value", "dhcp.option.vendor.value.uint",
		    FT_UINT32, BASE_DEC, NULL, 0x0,
		    "Option 43: Suboption 32-bit value", HFILL }},

		{ &hf_dhcp_option43_value_stringz,
		  { "Value", "dhcp.option.vendor.value.string",
		    FT_STRINGZ, BASE_NONE, NULL, 0x0,
		    "Option 43: Suboption Z-String value", HFILL }},

		{ &hf_dhcp_option43_value_ip_address,
		  { "Value", "dhcp.option.vendor.value.address",
		    FT_IPv4, BASE_NONE, NULL, 0x00,
		    "Option 43: Suboption IP address", HFILL }},


		{ &hf_dhcp_option43_pxeclient_suboption,
		  { "Option 43 Suboption", "dhcp.option.vendor.pxeclient.suboption",
		    FT_UINT8, BASE_DEC, VALS(option43_pxeclient_suboption_vals), 0x0,
		    "Option 43:PXE Client Suboption", HFILL }},

		{ &hf_dhcp_option43_pxeclient_padding,
		  { "Padding", "dhcp.option.vendor.pxeclient.padding",
		    FT_UINT8, BASE_DEC, NULL, 0x0,
		    "Option 43:PXE Client 0 Padding", HFILL }},

		{ &hf_dhcp_option43_pxeclient_mtftp_ip,
		  { "mtftp IP", "dhcp.option.vendor.pxeclient.mtftp_ip",
		    FT_IPv4, BASE_NONE, NULL, 0x00,
		    "Option 43:PXE Client 1 mtftp IP", HFILL }},

		{ &hf_dhcp_option43_pxeclient_mtftp_client_port,
		  { "mtftp client port", "dhcp.option.vendor.pxeclient.mtftp_client_port",
		    FT_UINT16, BASE_DEC, NULL, 0x00,
		    "Option 43:PXE Client 2 mtftp client port", HFILL }},

		{ &hf_dhcp_option43_pxeclient_mtftp_server_port,
		  { "mtftp server port", "dhcp.option.vendor.pxeclient.mtftp_server_port",
		    FT_UINT16, BASE_DEC, NULL, 0x00,
		    "Option 43:PXE Client 3 mtftp server port", HFILL }},

		{ &hf_dhcp_option43_pxeclient_mtftp_timeout,
		  { "mtftp timeout", "dhcp.option.vendor.pxeclient.mtftp_timeout",
		    FT_UINT8, BASE_DEC, NULL, 0x0,
		    "Option 43:PXE Client 4 mtftp timeout", HFILL }},

		{ &hf_dhcp_option43_pxeclient_mtftp_delay,
		  { "mtftp delay", "dhcp.option.vendor.pxeclient.mtftp_delay",
		    FT_UINT8, BASE_DEC, NULL, 0x0,
		    "Option 43:PXE Client 5 mtftp delay", HFILL }},

		{ &hf_dhcp_option43_pxeclient_discovery_control,
		  { "discovery control", "dhcp.option.vendor.pxeclient.discovery_control",
		    FT_UINT8, BASE_HEX, NULL, 0x0,
		    "Option 43:PXE Client 6 discovery control", HFILL }},

		{ &hf_dhcp_option43_pxeclient_discovery_control_bc,
		  { "Disable Broadcast", "dhcp.option.vendor.pxeclient.discovery_control.broadcast",
		    FT_BOOLEAN, 8, TFS(&tfs_set_notset), 0x01,
		    NULL, HFILL }},

		{ &hf_dhcp_option43_pxeclient_discovery_control_mc,
		  { "Disable Multicast", "dhcp.option.vendor.pxeclient.discovery_control.multicast",
		    FT_BOOLEAN, 8, TFS(&tfs_set_notset), 0x02,
		    NULL, HFILL }},

		{ &hf_dhcp_option43_pxeclient_discovery_control_serverlist,
		  { "Serverlist only", "dhcp.option.vendor.pxeclient.discovery_control.serverlist",
		    FT_BOOLEAN, 8, TFS(&tfs_set_notset), 0x04,
		    NULL, HFILL }},

		{ &hf_dhcp_option43_pxeclient_discovery_control_bstrap,
		  { "Bootstrap override", "dhcp.option.vendor.pxeclient.discovery_control.bstrap",
		    FT_BOOLEAN, 8, TFS(&tfs_set_notset), 0x08,
		    NULL, HFILL }},

		{ &hf_dhcp_option43_pxeclient_multicast_address,
		  { "multicast address", "dhcp.option.vendor.pxeclient.multicast_address",
		    FT_IPv4, BASE_NONE, NULL, 0x00,
		    "Option 43:PXE Client 7 multicast address", HFILL }},

		{ &hf_dhcp_option43_pxeclient_boot_servers,
		  { "boot servers", "dhcp.option.vendor.pxeclient.boot_servers",
		    FT_BYTES, BASE_NONE, NULL, 0x0,
		    "Option 43:PXE Client 8 boot servers", HFILL }},

		{ &hf_dhcp_option43_pxeclient_boot_server_type,
		  { "Type", "dhcp.option.vendor.pxeclient.boot_servers.type",
		    FT_UINT16, BASE_DEC, VALS(o43pxeclient_boot_server_types), 0x0,
		    NULL, HFILL }},

		{ &hf_dhcp_option43_pxeclient_boot_server_count,
		  { "IP count", "dhcp.option.vendor.pxeclient.boot_servers.count",
		    FT_UINT8, BASE_DEC, NULL, 0x0,
		    NULL, HFILL }},

		{ &hf_dhcp_option43_pxeclient_boot_server_ip,
		  { "IP", "dhcp.option.vendor.pxeclient.boot_servers.ip",
		    FT_IPv4, BASE_NONE, NULL, 0x0,
		    NULL, HFILL }},

		{ &hf_dhcp_option43_pxeclient_boot_menu,
		  { "boot menu", "dhcp.option.vendor.pxeclient.boot_menu",
		    FT_BYTES, BASE_NONE, NULL, 0x0,
		    "Option 43:PXE Client 9 boot menu", HFILL }},

		{ &hf_dhcp_option43_pxeclient_boot_menu_type,
		  { "Type", "dhcp.option.vendor.pxeclient.boot_menu.type",
		    FT_UINT16, BASE_DEC, VALS(o43pxeclient_boot_menu_types), 0x0,
		    NULL, HFILL }},

		{ &hf_dhcp_option43_pxeclient_boot_menu_length,
		  { "Length", "dhcp.option.vendor.pxeclient.boot_menu.length",
		    FT_UINT8, BASE_DEC, NULL, 0x0,
		    NULL, HFILL }},

		{ &hf_dhcp_option43_pxeclient_boot_menu_desc,
		  { "Description", "dhcp.option.vendor.pxeclient.boot_menu.desc",
		    FT_STRING, BASE_NONE, NULL, 0x0,
		    NULL, HFILL }},

		{ &hf_dhcp_option43_pxeclient_menu_prompt,
		  { "menu prompt", "dhcp.option.vendor.pxeclient.menu_prompt",
		    FT_BYTES, BASE_NONE, NULL, 0x0,
		    "Option 43:PXE Client 10 menu prompt", HFILL }},

		{ &hf_dhcp_option43_pxeclient_menu_prompt_timeout,
		  { "Timeout", "dhcp.option.vendor.pxeclient.menu_prompt.timeout",
		    FT_UINT8, BASE_DEC, NULL, 0x0,
		    NULL, HFILL }},

		{ &hf_dhcp_option43_pxeclient_menu_prompt_prompt,
		  { "Prompt", "dhcp.option.vendor.pxeclient.menu_prompt.prompt",
		    FT_STRING, BASE_NONE, NULL, 0x0,
		    NULL, HFILL }},

		{ &hf_dhcp_option43_pxeclient_multicast_address_alloc,
		  { "multicast address alloc", "dhcp.option.vendor.pxeclient.multicast_address_alloc",
		    FT_BYTES, BASE_NONE, NULL, 0x0,
		    "Option 43:PXE Client 11 multicast address alloc", HFILL }},

		{ &hf_dhcp_option43_pxeclient_credential_types,
		  { "credential types", "dhcp.option.vendor.pxeclient.credential_types",
		    FT_BYTES, BASE_NONE, NULL, 0x0,
		    "Option 43:PXE Client 12 credential types", HFILL }},

		{ &hf_dhcp_option43_pxeclient_boot_item,
		  { "boot item", "dhcp.option.vendor.pxeclient.boot_item",
		    FT_BYTES, BASE_NONE, NULL, 0x0,
		    "Option 43:PXE Client 71 boot item", HFILL }},

		{ &hf_dhcp_option43_pxeclient_boot_item_type,
		  { "Type", "dhcp.option.vendor.pxeclient.boot_item.type",
		    FT_UINT16, BASE_DEC, NULL, 0x0,
		    NULL, HFILL }},

		{ &hf_dhcp_option43_pxeclient_boot_item_layer,
		  { "Layer", "dhcp.option.vendor.pxeclient.boot_item.layer",
		    FT_BYTES, BASE_NONE, NULL, 0x0,
		    NULL, HFILL }},

		{ &hf_dhcp_option43_pxeclient_lcm_server,
		  { "LCM Server Name", "dhcp.option.vendor.pxeclient.lcm_server",
		    FT_STRINGZ, BASE_NONE, NULL, 0x0,
		    "Option 43:PXE Client 179 LCM Server", HFILL }},

		{ &hf_dhcp_option43_pxeclient_lcm_domain,
		  { "LCM Domain", "dhcp.option.vendor.pxeclient.lcm_domain",
		    FT_STRINGZ, BASE_NONE, NULL, 0x0,
		    "Option 43:PXE Client 180 LCM Domain", HFILL }},

		{ &hf_dhcp_option43_pxeclient_lcm_nic_option,
		  { "LCM NIC option", "dhcp.option.vendor.pxeclient.lcm_nic_option",
		    FT_BYTES, BASE_NONE, NULL, 0x0,
		    "Option 43:PXE Client 181 LCM NIC Option", HFILL }},

		{ &hf_dhcp_option43_pxeclient_lcm_workgroup,
		  { "LCM Workgroup", "dhcp.option.vendor.pxeclient.lcm_workgroup",
		    FT_STRINGZ, BASE_NONE, NULL, 0x0,
		    "Option 43:PXE Client 190 LCM Workgroup", HFILL }},

		{ &hf_dhcp_option43_pxeclient_discovery,
		  { "Discovery", "dhcp.option.vendor.pxeclient.discovery",
		    FT_BOOLEAN, BASE_NONE, TFS(&tfs_yes_no), 0x0,
		    "Option 43:PXE Client 191 Discovery", HFILL }},

		{ &hf_dhcp_option43_pxeclient_configured,
		  { "Configured", "dhcp.option.vendor.pxeclient.configured",
		    FT_BOOLEAN, BASE_NONE, TFS(&tfs_yes_no), 0x0,
		    "Option 43:PXE Client 192 Configured", HFILL }},

		{ &hf_dhcp_option43_pxeclient_lcm_version,
		  { "LCM Version", "dhcp.option.vendor.pxeclient.lcm_version",
		    FT_UINT32, BASE_DEC, NULL, 0x0,
		    "Option 43:PXE Client 193 LCM Version", HFILL }},

		{ &hf_dhcp_option43_pxeclient_lcm_serial,
		  { "LCM Serial Number", "dhcp.option.vendor.pxeclient.lcm_serial",
		    FT_STRINGZ, BASE_NONE, NULL, 0x0,
		    "Option 43:PXE Client 194 LCM Serial Number", HFILL }},

		{ &hf_dhcp_option43_pxeclient_end,
		  { "PXE Client End", "dhcp.option.vendor.pxeclient.end",
		    FT_UINT8, BASE_DEC, NULL, 0x0,
		    "Option 43:PXE Client 255 End", HFILL }},


	       /* AEROHIVE (Extremenetworks) vendor suboptions */
	       { &hf_dhcp_option43_aerohive_suboption,
		 { "Option 43 Suboption", "dhcp.option.vendor.cisco.suboption",
		   FT_UINT8, BASE_DEC, VALS(option43_aerohive_suboption_vals), 0x0,
		   "Option 43:AEROHIVE Suboption", HFILL }},

		{ &hf_dhcp_option43_aerohive_unknown,
		  { "Unknown", "dhcp.option.vendor.aerohive.unknown",
		    FT_BYTES, BASE_NONE, NULL, 0x0,
		    NULL, HFILL }},

	       { &hf_dhcp_option43_aerohive_xiqhostname,
		 { "HM FQDN", "dhcp.option.vendor.aerohive.xiqhostname",
		   FT_STRING, BASE_NONE, NULL, 0x0,
		   "Hive Manager NG FQDN", HFILL }},

	       { &hf_dhcp_option43_aerohive_xiqipaddress,
		 { "HM IP", "dhcp.option.vendor.aerohive.xiqipaddress",
		   FT_IPv4, BASE_NONE, NULL, 0x0,
		   "Hive Manager NG IP address", HFILL }},


		{ &hf_dhcp_option43_cl_suboption,
		  { "Option 43 Suboption", "dhcp.option.vendor.cl.suboption",
		    FT_UINT8, BASE_DEC, VALS(option43_cl_suboption_vals), 0x0,
		    "Option 43:CL Suboption", HFILL }},

		{ &hf_dhcp_option43_cl_padding,
		  { "Padding", "dhcp.option.vendor.cl.padding",
		    FT_UINT8, BASE_DEC, NULL, 0x0,
		    "Option 43:CL 0 Padding", HFILL }},

		{ &hf_dhcp_option43_cl_suboption_request_list,
		  { "Suboption Request List", "dhcp.option.vendor.cl.suboption_request_list",
		    FT_STRINGZ, BASE_NONE, NULL, 0x0,
		    "Option 43:CL 1 Suboption Request List", HFILL }},

		{ &hf_dhcp_option43_cl_device_type,
		  { "Device Type", "dhcp.option.vendor.cl.device_type",
		    FT_STRINGZ, BASE_NONE, NULL, 0x0,
		    "Option 43:CL 2 Device Type", HFILL }},

		{ &hf_dhcp_option43_cl_esafe_type,
		  { "eSAFE Types", "dhcp.option.vendor.cl.esafe_type",
		    FT_STRINGZ, BASE_NONE, NULL, 0x0,
		    "Option 43:CL 3 eSAFE Types", HFILL }},

		{ &hf_dhcp_option43_cl_serial_number,
		  { "Serial Number", "dhcp.option.vendor.cl.serial_number",
		    FT_STRINGZ, BASE_NONE, NULL, 0x0,
		    "Option 43:CL 4 Serial Number", HFILL }},

		{ &hf_dhcp_option43_cl_hardware_version,
		  { "Hardware Version", "dhcp.option.vendor.cl.hardware_version",
		    FT_STRINGZ, BASE_NONE, NULL, 0x0,
		    "Option 43:CL 5 Hardware Version", HFILL }},

		{ &hf_dhcp_option43_cl_software_version,
		  { "Software Version", "dhcp.option.vendor.cl.software_version",
		    FT_STRINGZ, BASE_NONE, NULL, 0x0,
		    "Option 43:CL 6 Software Version", HFILL }},

		{ &hf_dhcp_option43_cl_boot_rom_version,
		  { "Boot ROM version", "dhcp.option.vendor.cl.boot_rom_version",
		    FT_STRINGZ, BASE_NONE, NULL, 0x0,
		    "Option 43:CL 7 Boot ROM version", HFILL }},

		{ &hf_dhcp_option43_cl_oui_string,
		  { "Organizationally Unique Identifier", "dhcp.option.vendor.cl.oui_string",
		    FT_STRINGZ, BASE_NONE, NULL, 0x0,
		    "Option 43:CL 8 Organizationally Unique Identifier", HFILL }},

		{ &hf_dhcp_option43_cl_oui_bytes,
		  { "Organizationally Unique Identifier", "dhcp.option.vendor.cl.oui_bytes",
		    FT_BYTES, BASE_NONE, NULL, 0x0,
		    "Option 43:CL 8 Organizationally Unique Identifier", HFILL }},

		{ &hf_dhcp_option43_cl_model_number,
		  { "Model Number", "dhcp.option.vendor.cl.model_number",
		    FT_STRINGZ, BASE_NONE, NULL, 0x0,
		    "Option 43:CL 9 Model Number", HFILL }},

		{ &hf_dhcp_option43_cl_vendor_name10,
		  { "Vendor Name", "dhcp.option.vendor.cl.vendor_name10",
		    FT_STRINGZ, BASE_NONE, NULL, 0x0,
		    "Option 43:CL 10 Vendor Name", HFILL }},

		{ &hf_dhcp_option43_cl_address_realm,
		  { "Address Realm", "dhcp.option.vendor.cl.address_realm",
		    FT_UINT8, BASE_DEC, VALS(cablehome_subopt11_vals), 0x0,
		    "Option 43:CL 11 Address Realm", HFILL }},

		{ &hf_dhcp_option43_cl_cm_ps_system_desc,
		  { "CM/PS System Description", "dhcp.option.vendor.cl.cm_ps_system_desc",
		    FT_STRINGZ, BASE_NONE, NULL, 0x0,
		    "Option 43:CL 12 CM/PS System Description", HFILL }},

		{ &hf_dhcp_option43_cl_cm_ps_firmware_revision,
		  { "CM/PS Firmware Revision", "dhcp.option.vendor.cl.cm_ps_firmware_revision",
		    FT_STRINGZ, BASE_NONE, NULL, 0x0,
		    "Option 43:CL 13 CM/PS Firmware Revision", HFILL }},

		{ &hf_dhcp_option43_cl_firewall_policy_file_version,
		  { "Firewall Policy File Version", "dhcp.option.vendor.cl.firewall_policy_file_version",
		    FT_STRINGZ, BASE_NONE, NULL, 0x0,
		    "Option 43:CL 14 Firewall Policy File Version", HFILL }},

		{ &hf_dhcp_option43_cl_esafe_config_file_devices,
		  { "eSafe Config File Devices", "dhcp.option.vendor.cl.esafe_config_file_devices",
		    FT_STRINGZ, BASE_NONE, NULL, 0x0,
		    "Option 43:CL 15 eSafe Config File Devices", HFILL }},

		{ &hf_dhcp_option43_cl_video_security_tape,
		  { "Video Security Type", "dhcp.option.vendor.cl.video_security_tape",
		    FT_STRINGZ, BASE_NONE, NULL, 0x0,
		    "Option 43:CL 18 Video Security Type", HFILL }},

		{ &hf_dhcp_option43_cl_mta_mac_address,
		  { "MTA MAC Address", "dhcp.option.vendor.cl.mta_mac_address",
		    FT_ETHER, BASE_NONE, NULL, 0x0,
		    "Option 43:CL 31 MTA MAC Address", HFILL }},

		{ &hf_dhcp_option43_cl_correlation_ID,
		  { "Correlation ID", "dhcp.option.vendor.cl.correlation_ID",
		    FT_UINT32, BASE_DEC, NULL, 0x0,
		    "Option 43: CL 32 Correlation ID", HFILL }},

		{ &hf_dhcp_option43_cl_vendor_name51,
		  { "Vendor Name", "dhcp.option.vendor.cl.vendor_name51",
		    FT_STRINGZ, BASE_NONE, NULL, 0x0,
		    "Option 43:CL 51 Vendor Name", HFILL }},

		{ &hf_dhcp_option43_cl_cablecard_capability,
		  { "CableCARD Capability", "dhcp.option.vendor.cl.cablecard_capability",
		    FT_BYTES, BASE_NONE, NULL, 0x0,
		    "Option 43:CL 52 CableCARD Capability", HFILL }},

		{ &hf_dhcp_option43_cl_device_id_ca,
		  { "Device Identification (CA)", "dhcp.option.vendor.cl.device_id_ca",
		    FT_BYTES, BASE_NONE, NULL, 0x0,
		    "Option 43:CL 53 Device Identification (CA)", HFILL }},

		{ &hf_dhcp_option43_cl_device_id_x509,
		  { "Device Identification (X.509)", "dhcp.option.vendor.cl.device_id_x509",
		    FT_STRINGZ, BASE_NONE, NULL, 0x0,
		    "Option 43:CL 54 Device Identification (X.509)", HFILL }},

		{ &hf_dhcp_option43_cl_end,
		  { "CL End", "dhcp.option.vendor.cl.end",
		    FT_UINT8, BASE_DEC, NULL, 0x0,
		    "Option 43:CL 255 End", HFILL }},


		{ &hf_dhcp_option43_alcatel_suboption,
		  { "Option 43 Suboption", "dhcp.option.vendor.alu.suboption",
		    FT_UINT8, BASE_DEC, VALS(option43_alcatel_suboption_vals), 0x0,
		    "Option 43:Alcatel Suboption", HFILL }},

		{ &hf_dhcp_option43_alcatel_padding,
		  { "Padding", "dhcp.option.vendor.alu.padding",
		    FT_UINT8, BASE_DEC, NULL, 0x0,
		    "Option 43:Alcatel 0 Padding", HFILL }},

		{ &hf_dhcp_option43_alcatel_vlan_id,
		  { "Voice VLAN ID", "dhcp.option.vendor.alu.vid",
		    FT_UINT16, BASE_DEC, NULL, 0x0,
		    "Option 43:Alcatel 58 Voice VLAN ID", HFILL }},

		{ &hf_dhcp_option43_alcatel_tftp1,
		  { "Spatial Redundancy TFTP1", "dhcp.option.vendor.alu.tftp1",
		    FT_IPv4, BASE_NONE, NULL, 0x0,
		    "Option 43:Alcatel 64 Spatial Redundancy TFTP1", HFILL }},

		{ &hf_dhcp_option43_alcatel_tftp2,
		  { "Spatial Redundancy TFTP2", "dhcp.option.vendor.alu.tftp2",
		    FT_IPv4, BASE_NONE, NULL, 0x0,
		    "Option 43:Alcatel 65 Spatial Redundancy TFTP2", HFILL }},

		{ &hf_dhcp_option43_alcatel_app_type,
		  { "Application Type", "dhcp.option.vendor.alu.app_type",
		    FT_UINT8, BASE_DEC, VALS(option43_alcatel_app_type_vals), 0x0,
		    "Option 43:Alcatel 66 Application Type", HFILL }},

		{ &hf_dhcp_option43_alcatel_sip_url,
		  { "SIP URL", "dhcp.option.vendor.alu.sip_url",
		    FT_STRING, BASE_NONE, NULL, 0x0,
		    "Option 43:Alcatel 67 SIP URL", HFILL }},

		{ &hf_dhcp_option43_alcatel_end,
		  { "Alcatel End", "dhcp.option.vendor.alu.end",
		    FT_UINT8, BASE_DEC, NULL, 0x0,
		    "Option 43:Alcatel 255 End", HFILL }},

		{ &hf_dhcp_option43_arubaap_controllerip,
		  { "Aruba Controller IP", "dhcp.option.vendor.arubaap.controllerip",
		    FT_STRING, BASE_NONE, NULL, 0x0,
		    "Address IP of Aruba controller", HFILL }},

		{ &hf_dhcp_option43_arubaiap,
		  { "Aruba Instant AP", "dhcp.option.vendor.arubaiap",
		    FT_STRING, BASE_NONE, NULL, 0x0,
		    "nameorg,amp-ip-address,password", HFILL }},

		{ &hf_dhcp_option43_arubaiap_nameorg,
		  { "Name Organisation", "dhcp.option.vendor.arubaiap.name_org",
		    FT_STRING, BASE_NONE, NULL, 0x0,
		    NULL, HFILL }},

		{ &hf_dhcp_option43_arubaiap_ampip,
		  { "AMP IP Address", "dhcp.option.vendor.arubaiap.amp_ip",
		    FT_STRING, BASE_NONE, NULL, 0x0,
		    "Address IP of Airwave server (AMP)", HFILL }},

		{ &hf_dhcp_option43_arubaiap_password,
		  { "Password", "dhcp.option.vendor.arubaiap.password",
		    FT_STRING, BASE_NONE, NULL, 0x0,
		    "Password for Instant AP Airwave server (AMP)", HFILL }},


		{ &hf_dhcp_option43_bsdp_suboption,
		  { "Option 43 Suboption", "dhcp.option.vendor.bsdp.suboption",
		    FT_UINT8, BASE_DEC, VALS(option43_cl_suboption_vals), 0x0,
		    "Option 43:BSDP Suboption", HFILL }},

		{ &hf_dhcp_option43_bsdp_message_type,
		  { "Message Type", "dhcp.option.vendor.bsdp.message_type",
		    FT_UINT8, BASE_DEC, VALS(o43_bsdp_message_type_vals), 0x0,
		    NULL, HFILL }},

		{ &hf_dhcp_option43_bsdp_version,
		  { "Version", "dhcp.option.vendor.bsdp.version",
		    FT_UINT16, BASE_HEX, NULL, 0x0,
		    NULL, HFILL }},

		{ &hf_dhcp_option43_bsdp_server_identifier,
		  { "Server Identifier", "dhcp.option.vendor.bsdp.server_identifier",
		    FT_IPv4, BASE_NONE, NULL, 0x0,
		    NULL, HFILL }},

		{ &hf_dhcp_option43_bsdp_server_priority,
		  { "Server Priority", "dhcp.option.vendor.bsdp.server_priority",
		    FT_UINT16, BASE_DEC, NULL, 0x0,
		    NULL, HFILL }},

		{ &hf_dhcp_option43_bsdp_reply_port,
		  { "Reply Port", "dhcp.option.vendor.bsdp.reply_port",
		    FT_UINT16, BASE_DEC, NULL, 0x0,
		    NULL, HFILL }},

		{ &hf_dhcp_option43_bsdp_boot_image_list_path,
		  { "Boot Image List Path", "dhcp.option.vendor.bsdp.boot_image_list_path",
		    FT_STRING, BASE_NONE, NULL, 0x0,
		    NULL, HFILL }},

		{ &hf_dhcp_option43_bsdp_boot_image_index,
		  { "Boot Image Index", "dhcp.option.vendor.bsdp.boot_image.index",
		    FT_UINT16, BASE_HEX, NULL, 0x0,
		    NULL, HFILL }},

		{ &hf_dhcp_option43_bsdp_default_boot_image_id,
		  { "Default Boot Image ID", "dhcp.option.vendor.bsdp.default_boot_image_id",
		    FT_UINT32, BASE_HEX, NULL, 0x0,
		    NULL, HFILL }},

		{ &hf_dhcp_option43_bsdp_selected_boot_image_id,
		  { "Selected Boot Image ID", "dhcp.option.vendor.bsdp.selected_boot_image_id",
		    FT_UINT32, BASE_HEX, NULL, 0x0,
		    NULL, HFILL }},

		{ &hf_dhcp_option43_bsdp_boot_image_list,
		  { "Boot Image List", "dhcp.option.vendor.bsdp.boot_image_list",
		    FT_BYTES, BASE_NONE, NULL, 0x0,
		    NULL, HFILL }},

		{ &hf_dhcp_option43_bsdp_image_desc,
		  { "Boot Image Description", "dhcp.option.vendor.bsdp.boot_image.desc",
		    FT_BYTES, BASE_NONE, NULL, 0x0,
		    NULL, HFILL }},

		{ &hf_dhcp_option43_bsdp_boot_image_name_len,
		  { "Boot Image Name Length", "dhcp.option.vendor.bsdp.boot_image.name_len",
		    FT_UINT8, BASE_DEC, NULL, 0x0,
		    NULL, HFILL }},

		{ &hf_dhcp_option43_bsdp_boot_image_name,
		  { "Boot Image Name", "dhcp.option.vendor.bsdp.boot_image.name",
		    FT_STRING, BASE_NONE, NULL, 0x0,
		    NULL, HFILL }},

		{ &hf_dhcp_option43_bsdp_netboot_firmware,
		  { "NetBoot 1.0 Firmware", "dhcp.option.vendor.bsdp.netboot_firmware",
		    FT_NONE, BASE_NONE, NULL, 0x0,
		    NULL, HFILL }},

		{ &hf_dhcp_option43_bsdp_attributes_filter_list,
		  { "Boot Image Attributes Filter List", "dhcp.option.vendor.bsdp.attributes_filter_list",
		    FT_BYTES, BASE_NONE, NULL, 0x0,
		    NULL, HFILL }},

		{ &hf_dhcp_option43_bsdp_boot_image_attribute,
		  { "Boot Image Attribute", "dhcp.option.vendor.bsdp.boot_image.attribute",
		    FT_UINT16, BASE_HEX, NULL, 0x0,
		    NULL, HFILL }},

		{ &hf_dhcp_option43_bsdp_boot_image_attribute_install,
		  { "Install", "dhcp.option.vendor.bsdp.boot_image.attribute.install",
		    FT_UINT16, BASE_HEX, VALS(o43_bsdp_boot_image_install_vals), 0x8000,
		    "Boot Image Attribute Install", HFILL }},

		{ &hf_dhcp_option43_bsdp_boot_image_attribute_kind,
		  { "Kind", "dhcp.option.vendor.bsdp.boot_image.attribute.kind",
		    FT_UINT16, BASE_HEX, VALS(o43_bsdp_boot_image_kind_vals), 0x7f00,
		    "Boot Image Attribute Kind", HFILL }},

		{ &hf_dhcp_option43_bsdp_boot_image_attribute_reserved,
		  { "Reserved", "dhcp.option.vendor.bsdp.boot_image.attribute.reserved",
		    FT_UINT16, BASE_HEX, NULL, 0x00ff,
		    "Boot Image Attribute Reserved", HFILL }},

		{ &hf_dhcp_option43_bsdp_message_size,
		  { "Message Size", "dhcp.option.vendor.bsdp.message_size",
		    FT_UINT16, BASE_DEC, NULL, 0x0,
		    NULL, HFILL }},


		{ &hf_dhcp_option_netbios_over_tcpip_name_server,
		  { "NetBIOS over TCP/IP Name Server", "dhcp.option.netbios_over_tcpip_name_server",
		    FT_IPv4, BASE_NONE, NULL, 0x00,
		    "Option 44: NetBIOS over TCP/IP Name Server", HFILL }},

		{ &hf_dhcp_option_netbios_over_tcpip_dd_name_server,
		  { "NetBIOS over TCP/IP Datagram Distribution Name Server", "dhcp.option.netbios_over_tcpip_dd_name_server",
		    FT_IPv4, BASE_NONE, NULL, 0x00,
		    "Option 45: NetBIOS over TCP/IP Datagram Distribution Name Server", HFILL }},

		{ &hf_dhcp_option_netbios_over_tcpip_node_type,
		  { "NetBIOS over TCP/IP Node Type", "dhcp.option.netbios_over_tcpip_node_type",
		    FT_UINT8, BASE_DEC, VALS(dhcp_nbnt_vals), 0x0,
		    "Option 46: NetBIOS over TCP/IP Node Type", HFILL }},

		{ &hf_dhcp_option_netbios_over_tcpip_scope,
		  { "NetBIOS over TCP/IP Scope", "dhcp.option.netbios_over_tcpip_scope",
		    FT_STRINGZ, BASE_NONE, NULL, 0x0,
		    "Option 47: NetBIOS over TCP/IP Scope", HFILL }},

		{ &hf_dhcp_option_xwindows_system_font_server,
		  { "X Window System Font Server", "dhcp.option.xwindows_system_font_server",
		    FT_IPv4, BASE_NONE, NULL, 0x00,
		    "Option 48: X Window System Font Server", HFILL }},

		{ &hf_dhcp_option_xwindows_system_display_manager,
		  { "X Window System Display Manager", "dhcp.option.xwindows_system_display_manager",
		    FT_IPv4, BASE_NONE, NULL, 0x00,
		    "Option 49: X Window System Display Manager", HFILL }},

		{ &hf_dhcp_option_requested_ip_address,
		  { "Requested IP Address", "dhcp.option.requested_ip_address",
		    FT_IPv4, BASE_NONE, NULL, 0x00,
		    "Option 50: Requested IP Address", HFILL }},

		{ &hf_dhcp_option_ip_address_lease_time,
		  { "IP Address Lease Time", "dhcp.option.ip_address_lease_time",
		    FT_UINT32, BASE_CUSTOM, CF_FUNC(dhcp_time_in_u_secs_fmt), 0x0,
		    "Option 51: IP Address Lease Time", HFILL }},

		{ &hf_dhcp_option_option_overload,
		  { "Option Overload", "dhcp.option.option_overload",
		    FT_UINT8, BASE_DEC, VALS(opt_overload_vals), 0x0,
		    "Option 52: Option Overload", HFILL }},

		{ &hf_dhcp_option_dhcp,
		  { "DHCP", "dhcp.option.dhcp",
		    FT_UINT8, BASE_DEC, VALS(opt53_text), 0x0,
		    "Option 53: DHCP option", HFILL }},

		{ &hf_dhcp_option_dhcp_server_id,
		  { "DHCP Server Identifier", "dhcp.option.dhcp_server_id",
		    FT_IPv4, BASE_NONE, NULL, 0x00,
		    "Option 54: DHCP Server Identifier", HFILL }},

		{ &hf_dhcp_option_parameter_request_list_item,
		  { "Parameter Request List Item", "dhcp.option.request_list_item",
		    FT_UINT8, BASE_DEC, NULL, 0x0,
		    "Option 55: Parameter Request List Item", HFILL }},

		{ &hf_dhcp_option_message,
		  { "Message", "dhcp.option.message",
		    FT_STRINGZ, BASE_NONE, NULL, 0x0,
		    "Option 56: Option message", HFILL }},

		{ &hf_dhcp_option_dhcp_max_message_size,
		  { "Maximum DHCP Message Size", "dhcp.option.dhcp_max_message_size",
		    FT_UINT16, BASE_DEC, NULL, 0x0,
		    "Option 57: Maximum DHCP Message Size", HFILL }},

		{ &hf_dhcp_option_renewal_time_value,
		  { "Renewal Time Value", "dhcp.option.renewal_time_value",
		    FT_UINT32, BASE_CUSTOM, CF_FUNC(dhcp_time_in_u_secs_fmt), 0x0,
		    "Option 58: Renewal Time Value", HFILL }},

		{ &hf_dhcp_option_rebinding_time_value,
		  { "Rebinding Time Value", "dhcp.option.rebinding_time_value",
		    FT_UINT32, BASE_CUSTOM, CF_FUNC(dhcp_time_in_u_secs_fmt), 0x0,
		    "Option 59: Rebinding Time Value", HFILL }},

		{ &hf_dhcp_option_vendor_class_id,
		  { "Vendor class identifier", "dhcp.option.vendor_class_id",
		    FT_STRINGZ, BASE_NONE, NULL, 0x0,
		    "Option 60: Vendor class identifier", HFILL }},

		{ &hf_dhcp_option_vendor_class_data,
		  { "vendor-class-data", "dhcp.option.vendor_class_data",
		    FT_STRINGZ, BASE_NONE, NULL, 0x0,
		    "Option 60: Vendor class data", HFILL }},

		{ &hf_dhcp_option_novell_netware_ip_domain,
		  { "Novell/Netware IP domain", "dhcp.option.novell_netware_ip_domain",
		    FT_STRINGZ, BASE_NONE, NULL, 0x0,
		    "Option 62: Novell/Netware IP domain", HFILL }},

		{ &hf_dhcp_option63_suboption,
		  { "Option 63 Suboption", "dhcp.option.novell_options.suboption",
		    FT_UINT8, BASE_DEC, VALS(option63_suboption_vals), 0x0,
		    "Option 63: Suboption", HFILL }},

		{ &hf_dhcp_option63_value,
		  { "Value", "dhcp.option.novell_options.value",
		    FT_BYTES, BASE_NONE, NULL, 0x0,
		    "Option 63: Suboption value", HFILL }},

		{ &hf_dhcp_option63_value_8,
		  { "Value", "dhcp.option.novell_options.value.uint",
		    FT_UINT8, BASE_DEC, NULL, 0x0,
		    "Option 63: Suboption 8-bit value", HFILL }},

		{ &hf_dhcp_option63_value_ip_address,
		  { "Value", "dhcp.option.novell_options.value.address",
		    FT_IPv4, BASE_NONE, NULL, 0x00,
		    "Option 63: Suboption IP address", HFILL }},

		{ &hf_dhcp_option63_value_boolean,
		  { "Value", "dhcp.option.novell_options.value.bool",
		    FT_BOOLEAN, BASE_NONE, NULL, 0x00,
		    "Option 63: Suboption Boolean value", HFILL }},

		{ &hf_dhcp_option63_broadcast,
		  { "Broadcast for nearest Netware server", "dhcp.option.novell_options.broadcast",
		    FT_BOOLEAN, BASE_NONE, TFS(&tfs_yes_no), 0x00,
		    "Option 63:5 Broadcast for nearest Netware server", HFILL }},

		{ &hf_dhcp_option63_preferred_dss_server,
		  { "Preferred DSS server", "dhcp.option.novell_options.preferred_dss_server",
		    FT_IPv4, BASE_NONE, NULL, 0x00,
		    "Option 63:6 Preferred DSS server", HFILL }},

		{ &hf_dhcp_option63_nearest_nwip_server,
		  { "Nearest NWIP server", "dhcp.option.novell_options.nearest_nwip_server",
		    FT_IPv4, BASE_NONE, NULL, 0x00,
		    "Option 63:7 Nearest NWIP server", HFILL }},

		{ &hf_dhcp_option63_autoretries,
		  { "Autoretries", "dhcp.option.novell_options.autoretries",
		    FT_UINT8, BASE_DEC, NULL, 0x0,
		    "Option 63:8 Autoretries", HFILL }},

		{ &hf_dhcp_option63_autoretry_delay,
		  { "Autoretry delay, sec",
		    "dhcp.option.novell_options.autoretry_delay", FT_UINT8, BASE_DEC, NULL,
		    0x0, "Option 63:9 Autoretry delay, sec", HFILL }},

		{ &hf_dhcp_option63_support_netware_v1_1,
		  { "Broadcast for nearest Netware server", "dhcp.option.novell_options.support_netware_v1_1",
		    FT_BOOLEAN, BASE_NONE, TFS(&tfs_yes_no), 0x00,
		    "Option 63:10 Broadcast for nearest Netware server", HFILL }},

		{ &hf_dhcp_option63_primary_dss,
		  { "Primary DSS", "dhcp.option.novell_options.primary_dss",
		    FT_IPv4, BASE_NONE, NULL, 0x00,
		    "Option 63:11 Primary DSS", HFILL }},


		{ &hf_dhcp_option_nis_plus_domain,
		  { "Network Information Service+ Domain", "dhcp.option.nis_plus_domain",
		    FT_STRINGZ, BASE_NONE, NULL, 0x0,
		    "Option 64: Network Information Service+ Domain", HFILL }},

		{ &hf_dhcp_option_nis_plus_server,
		  { "Network Information Service+ Server", "dhcp.option.nis_plus_server",
		    FT_IPv4, BASE_NONE, NULL, 0x00,
		    "Option 65: Network Information Service+ Server", HFILL }},

		{ &hf_dhcp_option_tftp_server_name,
		  { "TFTP Server Name", "dhcp.option.tftp_server_name",
		    FT_STRINGZ, BASE_NONE, NULL, 0x0,
		    "Option 66: TFTP Server Name", HFILL }},

		{ &hf_dhcp_option_bootfile_name,
		  { "Bootfile name", "dhcp.option.bootfile_name",
		    FT_STRINGZ, BASE_NONE, NULL, 0x0,
		    "Option 67: Bootfile name", HFILL }},

		{ &hf_dhcp_option_mobile_ip_home_agent,
		  { "Mobile IP Home Agent", "dhcp.option.mobile_ip_home_agent",
		    FT_IPv4, BASE_NONE, NULL, 0x00,
		    "Option 68: Mobile IP Home Agent", HFILL }},

		{ &hf_dhcp_option_smtp_server,
		  { "SMTP Server", "dhcp.option.smtp_server",
		    FT_IPv4, BASE_NONE, NULL, 0x00,
		    "Option 69: SMTP Server", HFILL }},

		{ &hf_dhcp_option_pop3_server,
		  { "POP3 Server", "dhcp.option.pop3_server",
		    FT_IPv4, BASE_NONE, NULL, 0x00,
		    "Option 70: POP3 Server", HFILL }},

		{ &hf_dhcp_option_nntp_server,
		  { "NNTP Server", "dhcp.option.nntp_server",
		    FT_IPv4, BASE_NONE, NULL, 0x00,
		    "Option 71: NNTP Server", HFILL }},

		{ &hf_dhcp_option_default_www_server,
		  { "Default WWW Server", "dhcp.option.default_www_server",
		    FT_IPv4, BASE_NONE, NULL, 0x00,
		    "Option 72: Default WWW Server", HFILL }},

		{ &hf_dhcp_option_default_finger_server,
		  { "Default Finger Server", "dhcp.option.default_finger_server",
		    FT_IPv4, BASE_NONE, NULL, 0x00,
		    "Option 73: Default Finger Server", HFILL }},

		{ &hf_dhcp_option_default_irc_server,
		  { "Default IRC Server", "dhcp.option.default_irc_server",
		    FT_IPv4, BASE_NONE, NULL, 0x00,
		    "Option 74: Default IRC Server", HFILL }},

		{ &hf_dhcp_option_streettalk_server,
		  { "StreetTalk Server", "dhcp.option.streettalk_server",
		    FT_IPv4, BASE_NONE, NULL, 0x00,
		    "Option 75: StreetTalk Server", HFILL }},

		{ &hf_dhcp_option_streettalk_da_server,
		  { "StreetTalk Directory Assistance Server", "dhcp.option.streettalk_da_server",
		    FT_IPv4, BASE_NONE, NULL, 0x00,
		    "Option 76: StreetTalk Directory Assistance Server", HFILL }},

		{ &hf_dhcp_option77_user_class,
		  { "Instance of User Class", "dhcp.option.user_class",
		    FT_UINT8, BASE_DEC, NULL, 0x0,
		    NULL, HFILL }},

		{ &hf_dhcp_option77_user_class_length,
		  { "User Class Length", "dhcp.option.user_class.length",
		    FT_UINT8, BASE_DEC, NULL, 0x0,
		    "Length of User Class Instance", HFILL }},

		{ &hf_dhcp_option77_user_class_data,
		  { "User Class Data", "dhcp.option.user_class.data",
		    FT_BYTES, BASE_NONE, NULL, 0x0,
		    "Data of User Class Instance", HFILL }},

		{ &hf_dhcp_option77_user_class_text,
		  { "User Class Data (Text)", "dhcp.option.user_class.text",
		    FT_STRING, BASE_NONE, NULL, 0x0,
		    "Text of User Class Instance", HFILL }},

		{ &hf_dhcp_option77_user_class_binary_data_length,
		  { "User Class Binary Data Length", "dhcp.option.user_class_binary_data_length",
		    FT_UINT16, BASE_DEC, NULL, 0x0,
		    "Length of User Class Binary Data (Microsoft)", HFILL }},

		{ &hf_dhcp_option77_user_class_binary_data,
		  { "User Class Binary Data", "dhcp.option.user_class_binary_data",
		    FT_STRING, BASE_NONE, NULL, 0x0,
		    "User Class Binary Data (Microsoft)", HFILL }},

		{ &hf_dhcp_option77_user_class_padding,
		  { "User Class padding", "dhcp.option.user_class_padding",
		    FT_BYTES, BASE_NONE, NULL, 0x0,
		    "User Class padding (Microsoft)", HFILL }},

		{ &hf_dhcp_option77_user_class_name_length,
		  { "User Class Name Length", "dhcp.option.user_class_name_length",
		    FT_UINT16, BASE_DEC, NULL, 0x0,
		    "Length of User Class Name (Microsoft)", HFILL }},

		{ &hf_dhcp_option77_user_class_name,
		  { "User Class Name", "dhcp.option.user_class_name",
		    FT_STRINGZPAD, BASE_NONE, NULL, 0x0,
		    "User Class Name (Microsoft)", HFILL }},

		{ &hf_dhcp_option77_user_class_description_length,
		  { "User Class Description Length", "dhcp.option.user_class_description_length",
		    FT_UINT16, BASE_DEC, NULL, 0x0,
		    "Length of User Class Description (Microsoft)", HFILL }},

		{ &hf_dhcp_option77_user_class_description,
		  { "User Class Description", "dhcp.option.user_class_description",
		    FT_STRINGZPAD, BASE_NONE, NULL, 0x0,
		    "User Class Description (Microsoft)", HFILL }},

		{ &hf_dhcp_option_slp_directory_agent_value,
		  { "Value", "dhcp.option.slp_directory_agent.value",
		    FT_UINT8, BASE_DEC, VALS(slpda_vals), 0x0,
		    "Option 78: SLPDA Value", HFILL }},

		{ &hf_dhcp_option_slp_directory_agent_slpda_address,
		  { "IP Address", "dhcp.option.slp_directory_agent.slpda_address",
		    FT_IPv4, BASE_NONE, NULL, 0x00,
		    "Option 78: SLPDA Address", HFILL }},

		{ &hf_dhcp_option_slp_service_scope_value,
		  { "Value", "dhcp.option.slp_service_scope.value",
		    FT_UINT8, BASE_DEC, VALS(slp_scope_vals), 0x0,
		    "Option 79: SLP Service Scope Value", HFILL }},

		{ &hf_dhcp_option_slp_service_scope_string,
		  { "SLP Service Scope", "dhcp.option.slp_service_scope.string",
		    FT_STRINGZ, BASE_NONE, NULL, 0x0,
		    "Option 79: SLP Service Scope", HFILL }},


		{ &hf_dhcp_option82_suboption,
		  { "Option 82 Suboption", "dhcp.option.agent_information_option.suboption",
		    FT_UINT8, BASE_DEC, VALS(option82_suboption_vals), 0x0,
		    "Option 82: Suboption", HFILL }},

		{ &hf_dhcp_option82_value,
		  { "Value", "dhcp.option.agent_information_option.value",
		    FT_BYTES, BASE_NONE, NULL, 0x0,
		    "Option 82: Suboption value", HFILL }},

		{ &hf_dhcp_option82_value_8,
		  { "Value", "dhcp.option.agent_information_option.value.uint",
		    FT_UINT8, BASE_DEC, NULL, 0x0,
		    "Option 82: Suboption 8-bit value", HFILL }},

		{ &hf_dhcp_option82_value_16,
		  { "Value", "dhcp.option.agent_information_option.value.uint",
		    FT_UINT16, BASE_DEC, NULL, 0x0,
		    "Option 162: Suboption 16-bit value", HFILL }},

		{ &hf_dhcp_option82_value_32,
		  { "Value", "dhcp.option.agent_information_option.value.uint",
		    FT_UINT32, BASE_DEC, NULL, 0x0,
		    "Option 82: Suboption 32-bit value", HFILL }},

		{ &hf_dhcp_option82_value_ip_address,
		  { "Value", "dhcp.option.agent_information_option.value.address",
		    FT_IPv4, BASE_NONE, NULL, 0x00,
		    "Option 82: Suboption IP address", HFILL }},

		{ &hf_dhcp_option82_value_stringz,
		  { "Value", "dhcp.option.agent_information_option.value.string",
		    FT_STRINGZ, BASE_NONE, NULL, 0x0,
		    "Option 82: Suboption Z-String value", HFILL }},

		{ &hf_dhcp_option82_padding,
		  { "Padding", "dhcp.option.agent_information_option.padding",
		    FT_UINT8, BASE_DEC, NULL, 0x0,
		    "Option 82:0 Padding", HFILL }},

		{ &hf_dhcp_option82_agent_circuit_id,
		  { "Agent Circuit ID", "dhcp.option.agent_information_option.agent_circuit_id",
		    FT_BYTES, BASE_NONE, NULL, 0x0,
		    "Option 82:1 Agent Circuit ID", HFILL }},

		{ &hf_dhcp_option82_agent_remote_id,
		  { "Agent Remote ID", "dhcp.option.agent_information_option.agent_remote_id",
		    FT_BYTES, BASE_NONE, NULL, 0x0,
		    "Option 82:2 Agent Remote ID", HFILL }},

		{ &hf_dhcp_option82_reserved,
		  { "Reserved", "dhcp.option.agent_information_option.reserved",
		    FT_BYTES, BASE_NONE, NULL, 0x0,
		    "Option 82:3 Reserved", HFILL }},

		{ &hf_dhcp_option82_docsis_device_class,
		  { "DOCSIS Device Class", "dhcp.option.agent_information_option.docsis_device_class",
		    FT_UINT32, BASE_HEX, NULL, 0x0,
		    "Option 82:4 DOCSIS Device Class", HFILL }},

		{ &hf_dhcp_option82_link_selection,
		  { "Link selection", "dhcp.option.agent_information_option.link_selection",
		    FT_IPv4, BASE_NONE, NULL, 0x00,
		    "Option 82:5 Link selection", HFILL }},

		{ &hf_dhcp_option82_subscriber_id,
		  { "Subscriber ID", "dhcp.option.agent_information_option.subscriber_id",
		    FT_STRINGZ, BASE_NONE, NULL, 0x0,
		    "Option 82:6 Subscriber ID", HFILL }},

		{ &hf_dhcp_option82_radius_attributes,
		  { "RADIUS Attributes", "dhcp.option.agent_information_option.radius_attributes",
		    FT_BYTES, BASE_NONE, NULL, 0x0,
		    "Option 82:7 RADIUS Attributes", HFILL }},

		{ &hf_dhcp_option82_authentication,
		  { "Authentication", "dhcp.option.agent_information_option.authentication",
		    FT_BYTES, BASE_NONE, NULL, 0x0,
		    "Option 82:8 Authentication", HFILL }},

		{ &hf_dhcp_option82_vi,
		  { "Vendor-Specific Information", "dhcp.option.agent_information_option.vi",
		    FT_BYTES, BASE_NONE, NULL, 0x0,
		    "Option 82:9 Vendor-Specific Information", HFILL }},

		{ &hf_dhcp_option82_vi_enterprise,
		  { "Enterprise", "dhcp.option.agent_information_option.vi.enterprise",
		    FT_UINT32, BASE_ENTERPRISES, STRINGS_ENTERPRISES, 0x0,
		    "Option 82:9 VI Enterprise", HFILL }},

		{ &hf_dhcp_option82_vi_data_length,
		  { "Data Length", "dhcp.option.agent_information_option.vi.data_length",
		    FT_UINT8, BASE_DEC, NULL, 0x0,
		    "Option 82:9 VI Data Length", HFILL }},

		{ &hf_dhcp_option82_vi_cl_docsis_version,
		  { "DOCSIS Version Number", "dhcp.option.agent_information_option.vi.cl.docsis_version",
		    FT_UINT16, BASE_HEX, NULL, 0x0,
		    "Option 82:9 VI CL DOCSIS Version Number", HFILL }},

		{ &hf_dhcp_option82_vi_cl_dpoe_system_version,
		  { "DPoE System Version Number", "dhcp.option.agent_information_option.vi.cl.dpoe_system_version",
		    FT_UINT16, BASE_HEX, NULL, 0x0,
		    "Option 82:9 VI CL DPoE System Version Number", HFILL }},

		{ &hf_dhcp_option82_vi_cl_dpoe_system_pbb_service,
		  { "DPoE System PBB Service", "dhcp.option.agent_information_option.vi.cl.dpoe_system_pbb_service",
		    FT_BYTES, BASE_NONE, NULL, 0x0,
		    "Option 82:9 VI CL DPoE System PBB Service", HFILL }},

		{ &hf_dhcp_option82_vi_cl_service_class_name,
		  { "Service Class Name", "dhcp.option.agent_information_option.vi.cl.service_class_name",
		    FT_STRING, BASE_NONE, NULL, 0x0,
		    "Option 82:9 VI CL Service Class Name", HFILL }},

		{ &hf_dhcp_option82_vi_cl_mso_defined_text,
		  { "MSO Defined Text", "dhcp.option.agent_information_option.vi.cl.mso_defined_text",
		    FT_STRING, BASE_NONE, NULL, 0x0,
		    "Option 82:9 VI CL MSO Defined Text", HFILL }},

		{ &hf_dhcp_option82_vi_cl_secure_file_transfer_uri,
		  { "Secure File Transfer URI", "dhcp.option.agent_information_option.vi.cl.secure_file_transfer_uri",
		    FT_STRING, BASE_NONE, NULL, 0x0,
		    "Option 82:9 VI CL Secure File Transfer URI", HFILL }},

		{ &hf_dhcp_option82_flags,
		  { "Flags", "dhcp.option.agent_information_option.flags",
		    FT_UINT8, BASE_HEX, NULL, 0x0,
		    "Option 82:10 Flags", HFILL }},

		{ &hf_dhcp_option82_server_id_override,
		  { "Server ID Override", "dhcp.option.agent_information_option.server_id_override",
		    FT_IPv4, BASE_NONE, NULL, 0x00,
		    "Option 82:11 Server ID Override", HFILL }},

		{ &hf_dhcp_option82_relay_agent_id,
		  { "Relay Agent Identifier", "dhcp.option.agent_information_option.relay_agent_id",
		    FT_BYTES, BASE_NONE, NULL, 0x00,
		    "Option 82:12 Relay Agent Identifier", HFILL }},

		{ &hf_dhcp_option82_option_ani_att,
		  { "Access Technology Type", "dhcp.option.agent_information_option.ani_att",
		    FT_UINT8, BASE_DEC, NULL, 0x00,
		    "Option 82:13 Access Technology Type", HFILL }},

		{ &hf_dhcp_option82_option_ani_att_res,
		  { "Access Technology Type", "dhcp.option.agent_information_option.ani_att.res",
		    FT_UINT8, BASE_DEC, NULL, 0x00,
		    "Option 82:13 Access Technology Type Reserved", HFILL }},

		{ &hf_dhcp_option82_option_ani_att_att,
		  { "Access Technology Type", "dhcp.option.agent_information_option.ani_att.att",
		    FT_UINT8, BASE_DEC, NULL, 0x00,
		    "Option 82:13 Access Technology Type Value", HFILL }},

		{ &hf_dhcp_option82_option_ani_network_name,
		  { "Access Network Name", "dhcp.option.agent_information_option.ani_network_name",
		    FT_STRING, BASE_NONE, NULL, 0x00,
		    "Option 82:14 Access Network Name", HFILL }},

		{ &hf_dhcp_option82_option_ani_ap_name,
		  { "Access Point Name", "dhcp.option.agent_information_option.ani_ap_name",
		    FT_STRING, BASE_NONE, NULL, 0x00,
		    "Option 82:15 Access Point Name", HFILL }},

		{ &hf_dhcp_option82_option_ani_ap_bssid,
		  { "Access Point BSSID", "dhcp.option.agent_information_option.ani_ap_bssid",
		    FT_ETHER, BASE_NONE, NULL, 0x0,
		    "Option 82:16 Access Point BSSID", HFILL }},

		{ &hf_dhcp_option82_option_ani_operator_id,
		  { "Access Network Operator ID", "dhcp.option.agent_information_option.ani_operator_id",
		    FT_BYTES, BASE_NONE, NULL, 0x00,
		    "Option 82:17 Access Network Operator ID", HFILL }},

		{ &hf_dhcp_option82_option_ani_operator_realm,
		  { "Access Network Operator Realm", "dhcp.option.agent_information_option.ani_operator_realm",
		    FT_STRING, BASE_NONE, NULL, 0x00,
		    "Option 82:18 Access Network Operator Realm", HFILL }},

		{ &hf_dhcp_option82_option_source_port,
		  { "Source Port", "dhcp.option.agent_information_option.source_port",
		    FT_UINT16, BASE_DEC, NULL, 0x00,
		    "Option 82:19 Source Port", HFILL }},

		{ &hf_dhcp_option82_link_selection_cisco,
		  { "Link selection (Cisco proprietary)", "dhcp.option.agent_information_option.link_selection_cisco",
		    FT_IPv4, BASE_NONE, NULL, 0x00,
		    "Option 82:150 Link selection (Cisco proprietary)", HFILL }},

		{ &hf_dhcp_option82_vrf_name_vpn_id,
		  { "VRF name/VPN ID", "dhcp.option.agent_information_option.vrf_name.vpn_id",
		    FT_BYTES, BASE_NONE, NULL, 0x00,
		    "Option 82:151 VRF name/VPN ID", HFILL }},

		{ &hf_dhcp_option82_vrf_name_global,
		  { "Global, default VPN", "dhcp.option.agent_information_option.vrf_name.global",
		    FT_UINT8, BASE_DEC, NULL, 0x00,
		    "Option 82:151 Global, default VPN", HFILL }},

		{ &hf_dhcp_option82_vrf_name,
		  { "VRF name", "dhcp.option.agent_information_option.vrf_name",
		    FT_STRING, BASE_NONE, NULL, 0x00,
		    "Option 82:151 VRF name", HFILL }},

		{ &hf_dhcp_option82_vrf_name_vpn_id_oui,
		  { "VRF name/VPN ID OUI", "dhcp.option.agent_information_option.vrf_name.vpn_id.oui",
		    FT_UINT24, BASE_HEX, NULL, 0x00,
		    "Option 82:151 VRF name/VPN ID OUI", HFILL }},

		{ &hf_dhcp_option82_vrf_name_vpn_id_index,
		  { "VRF name/VPN ID Index", "dhcp.option.agent_information_option.vrf_name.vpn_id.index",
		    FT_UINT32, BASE_HEX, NULL, 0x00,
		    "Option 82:151 VRF name/VPN ID Index", HFILL }},

		{ &hf_dhcp_option82_server_id_override_cisco,
		  { "Server ID Override (Cisco proprietary)", "dhcp.option.agent_information_option.server_id_override_cisco",
		    FT_IPv4, BASE_NONE, NULL, 0x00,
		    "Option 82:152 Server ID Override (Cisco proprietary)", HFILL }},


		{ &hf_dhcp_option_isns_functions,
		  { "iSNS Functions", "dhcp.option.isns.functions",
		    FT_UINT16, BASE_HEX, NULL, 0x00,
		    "iSNS: the functions supported by the iSNS servers", HFILL }},

		{ &hf_dhcp_option_isns_functions_enabled,
		  { "Function Fields Enabled", "dhcp.option.isns.functions.enabled",
		    FT_BOOLEAN, 16, TFS(&tfs_yes_no), F_ISNS_FUNCTIONS_ENABLED,
		    "If set to zero, then the contents of all other iSNS Function fields MUST be ignored", HFILL }},

		{ &hf_dhcp_option_isns_functions_dd_authorization,
		  { "Discovery Domain based Authorization", "dhcp.option.isns.functions.dd_base_authorization",
		    FT_BOOLEAN, 16, TFS(&tfs_isns_function_dd_based_auth), F_ISNS_FUNCTIONS_DD_AUTH,
		    "If set to zero, then access authorization must be explicitly performed by each device", HFILL }},

		{ &hf_dhcp_option_isns_functions_sec_policy_distibution,
		  { "Security Policy Distribution", "dhcp.option.isns.functions.sec_policy_distribution",
		    FT_BOOLEAN, 16, TFS(&tfs_isns_functions_sec_distrib), F_ISNS_FUNCTIONS_SEC_POLICY,
		    NULL, HFILL }},

		{ &hf_dhcp_option_isns_functions_reserved,
		  { "Reserved flags", "dhcp.option.isns.functions.reserved",
		    FT_UINT16, BASE_HEX, NULL, F_ISNS_FUNCTIONS_RESERVED,
		    NULL, HFILL }},

		{ &hf_dhcp_option_isns_discovery_domain_access,
		  { "Discovery Domain Access flags", "dhcp.option.isns.discovery_domain_access",
		    FT_UINT16, BASE_HEX, NULL, 0x00,
		    "iSNS: the types of iSNS clients that are allowed to modify Discovery Domains", HFILL }},

		{ &hf_dhcp_option_isns_discovery_domain_access_enabled,
		  { "Discovery Domain Enabled", "dhcp.option.isns.discovery_domain_access.enabled",
		    FT_BOOLEAN, 16, TFS(&tfs_yes_no), F_ISNS_DD_ACCESS_ENABLED,
		    "If set to zero, then the contents of the remainder of this field MUST be ignored", HFILL }},

		{ &hf_dhcp_option_isns_discovery_domain_access_control_node,
		  { "Control Node", "dhcp.option.isns.discovery_domain_access_control.node",
		    FT_BOOLEAN, 16, TFS(&tfs_yes_no), F_ISNS_DD_ACCESS_CTRL_NODE,
		    NULL, HFILL }},

		{ &hf_dhcp_option_isns_discovery_domain_access_iscsi_target,
		  { "iSCSI Target", "dhcp.option.isns.discovery_domain_access.iscsi_target",
		    FT_BOOLEAN, 16, TFS(&tfs_yes_no), F_ISNS_DD_ACCESS_ISCSI_TARGET,
		    NULL, HFILL }},

		{ &hf_dhcp_option_isns_discovery_domain_access_iscsi_inititator,
		  { "iSCSI Initiator", "dhcp.option.isns.discovery_domain_access.iscsi_initiator",
		    FT_BOOLEAN, 16, TFS(&tfs_yes_no), F_ISNS_DD_ACCESS_ISCSI_INITIATOR,
		    NULL, HFILL }},

		{ &hf_dhcp_option_isns_discovery_domain_access_ifcp_target_port,
		  { "iFCP Target Port", "dhcp.option.isns.discovery_domain_access.ifcp_target_port",
		    FT_BOOLEAN, 16, TFS(&tfs_yes_no), F_ISNS_DD_ACCESS_IFCP_TARGET_PORT,
		    NULL, HFILL }},

		{ &hf_dhcp_option_isns_discovery_domain_access_ifcp_initiator_port,
		  { "iFCP Initiator Port", "dhcp.option.isns.discovery_domain_access.initiator_target_port",
		    FT_BOOLEAN, 16, TFS(&tfs_yes_no), F_ISNS_DD_ACCESS_IFCP_INITIATOR_PORT,
		    NULL, HFILL }},

		{ &hf_dhcp_option_isns_discovery_domain_access_reserved,
		  { "Reserved Flags", "dhcp.option.isns.discovery_domain_access.reserved",
		    FT_UINT16, BASE_HEX, NULL, F_ISNS_DD_ACCESS_RESERVED,
		    NULL, HFILL }},

		{ &hf_dhcp_option_isns_administrative_flags,
		  { "Administrative Flags", "dhcp.option.isns.administrative_flags",
		    FT_UINT16, BASE_HEX, NULL, 0x00,
		    "iSNS: administrative settings for the iSNS servers discovered through the DHCP query", HFILL }},

		{ &hf_dhcp_option_isns_administrative_flags_enabled,
		  { "Administrative Flags Enabled", "dhcp.option.isns.administrative_flags.enabled",
		    FT_BOOLEAN, 16, TFS(&tfs_yes_no), F_ISNS_ADMIN_FLAGS_ENABLED,
		    NULL, HFILL }},

		{ &hf_dhcp_option_isns_administrative_flags_heartbeat,
		  { "Heartbeat", "dhcp.option.isns.administrative_flags.heartbeat",
		    FT_BOOLEAN, 16, TFS(&tfs_yes_no), F_ISNS_ADMIN_FLAGS_HEARTBEAT,
		    NULL, HFILL }},

		{ &hf_dhcp_option_isns_administrative_flags_management_scns,
		  { "Management SCNs", "dhcp.option.isns.administrative_flags.management_scns",
		    FT_BOOLEAN, 16, TFS(&tfs_yes_no), F_ISNS_ADMIN_FLAGS_MANAGEMENT_SCNS,
		    NULL, HFILL }},

		{ &hf_dhcp_option_isns_administrative_flags_default_dd,
		  { "Default Discovery Domain", "dhcp.option.isns.administrative_flags.default_discovery_domain",
		    FT_BOOLEAN, 16, TFS(&tfs_yes_no), F_ISNS_ADMIN_FLAGS_DEFAULT_DD,
		    NULL, HFILL }},

		{ &hf_dhcp_option_isns_administrative_flags_reserved,
		  { "Reserved Flags", "dhcp.option.isns.administrative_flags.reserved",
		    FT_UINT16, BASE_HEX, NULL, F_ISNS_ADMIN_FLAGS_RESERVED,
		    NULL, HFILL }},

		{ &hf_dhcp_option_isns_server_security_bitmap,
		  { "iSNS Server Security Bitmap", "dhcp.option.isns.server_security_bitmap",
		    FT_UINT32, BASE_HEX, NULL, 0x00,
		    "iSNS: server security settings", HFILL }},

		{ &hf_dhcp_option_isns_server_security_bitmap_enabled,
		  { "Server Security Bitmap Enabled", "dhcp.option.isns.server_security_bitmap.enabled",
		    FT_BOOLEAN, 16, TFS(&tfs_yes_no), F_ISNS_SRV_SEC_BITMAP_ENABLED,
		    NULL, HFILL }},

		{ &hf_dhcp_option_isns_server_security_bitmap_ike_ipsec_enabled,
		  { "IKE/IPSec", "dhcp.option.isns.server_security_bitmap.ike_ipsec_enabled",
		    FT_BOOLEAN, 16, TFS(&tfs_enabled_disabled), F_ISNS_SRV_SEC_BITMAP_IKE_IPSEC,
		    NULL, HFILL }},

		{ &hf_dhcp_option_isns_server_security_bitmap_main_mode,
		  { "Main Mode", "dhcp.option.isns.server_security_bitmap.main_mode",
		    FT_BOOLEAN, 16, TFS(&tfs_enabled_disabled), F_ISNS_SRV_SEC_BITMAP_MAIN_MODE,
		    NULL, HFILL }},

		{ &hf_dhcp_option_isns_server_security_bitmap_aggressive_mode,
		  { "Aggressive Mode", "dhcp.option.isns.server_security_bitmap.aggressive_mode",
		    FT_BOOLEAN, 16, TFS(&tfs_enabled_disabled), F_ISNS_SRV_SEC_BITMAP_AGGRESSIVE,
		    NULL, HFILL }},

		{ &hf_dhcp_option_isns_server_security_bitmap_pfs,
		  { "PFS", "dhcp.option.isns.server_security_bitmap.pfs",
		    FT_BOOLEAN, 16, TFS(&tfs_enabled_disabled), F_ISNS_SRV_SEC_BITMAP_PFS,
		    NULL, HFILL }},

		{ &hf_dhcp_option_isns_server_security_bitmap_transport_mode,
		  { "Transport Mode", "dhcp.option.isns.server_security_bitmap.transport_mode",
		    FT_BOOLEAN, 16, TFS(&tfs_preferred_no_preference), F_ISNS_SRV_SEC_BITMAP_TRASPORT_MODE,
		    NULL, HFILL }},

		{ &hf_dhcp_option_isns_server_security_bitmap_tunnel_mode,
		  { "Tunnel Mode", "dhcp.option.isns.server_security_bitmap.tunnel_mode",
		    FT_BOOLEAN, 16, TFS(&tfs_preferred_no_preference), F_ISNS_SRV_SEC_BITMAP_TUNNEL_MODE,
		    NULL, HFILL }},

		{ &hf_dhcp_option_isns_server_security_bitmap_reserved,
		  { "Reserved Flags", "dhcp.option.isns.server_security_bitmap.reserved",
		    FT_UINT16, BASE_HEX, NULL, F_ISNS_SRV_SEC_BITMAP_RESERVED,
		    NULL, HFILL }},

		{ &hf_dhcp_option_isns_primary_server_addr,
		  { "Primary Server Address", "dhcp.option.isns.primary_server_addr",
		    FT_IPv4, BASE_NONE, NULL, 0x00,
		    "iSNS: IP address of the primary server", HFILL }},

		{ &hf_dhcp_option_isns_heartbeat_originator_addr,
		  { "Heartbeat Originator Address", "dhcp.option.isns.heartbeat_originator_addr",
		    FT_IPv4, BASE_NONE, NULL, 0x00,
		    "iSNS: IP address from which the iSNS heartbeat originates", HFILL }},

		{ &hf_dhcp_option_isns_secondary_server_addr_list,
		  { "Secondary Server Address", "dhcp.option.isns.secondary_server_addr",
		    FT_IPv4, BASE_NONE, NULL, 0x00,
		    "iSNS: a list of IP addresses of the secondary iSNS servers", HFILL }},


		{ &hf_dhcp_option_novell_dss_string,
		  { "Novell Directory Services Servers String", "dhcp.option.novell_dss.string",
		    FT_STRINGZ, BASE_NONE, NULL, 0x0,
		    "Option 85: Novell Directory Services Servers String", HFILL }},

		{ &hf_dhcp_option_novell_dss_ip,
		  { "IP Address", "dhcp.option.novell_dss.ip",
		    FT_IPv4, BASE_NONE, NULL, 0x00,
		    "Option 85: Novell Directory Services Servers IP Address", HFILL }},

		{ &hf_dhcp_option_novell_ds_tree_name,
		  { "Novell Directory Services Tree Name", "dhcp.option.novell_ds_tree_name",
		    FT_STRINGZ, BASE_NONE, NULL, 0x0,
		    "Option 86: Novell Directory Services Tree Name", HFILL }},

		{ &hf_dhcp_option_novell_ds_context,
		  { "Novell Directory Services Context", "dhcp.option.novell_ds_context",
		    FT_STRINGZ, BASE_NONE, NULL, 0x0,
		    "Option 87: Novell Directory Services Context", HFILL }},

		{ &hf_dhcp_option_dhcp_authentication_protocol,
		  { "Protocol", "dhcp.option.dhcp_authentication.protocol",
		    FT_UINT8, BASE_DEC, VALS(authen_protocol_vals), 0x0,
		    "Option 90: Authentication Protocol", HFILL }},

		{ &hf_dhcp_option_dhcp_authentication_alg_delay,
		  { "Delay Algorithm", "dhcp.option.dhcp_authentication.alg_delay",
		    FT_UINT8, BASE_DEC, VALS(authen_da_algo_vals), 0x0,
		    "Option 90: Delayed Authentication Algorithm", HFILL }},

		{ &hf_dhcp_option_dhcp_authentication_algorithm,
		  { "Algorithm", "dhcp.option.dhcp_authentication.algorithm",
		    FT_UINT8, BASE_DEC, NULL, 0x0,
		    "Option 90: Authentication Algorithm", HFILL }},

		{ &hf_dhcp_option_dhcp_authentication_rdm,
		  { "Replay Detection Method", "dhcp.option.dhcp_authentication.rdm",
		    FT_UINT8, BASE_DEC, VALS(authen_rdm_vals), 0x0,
		    "Option 90: Replay Detection Method", HFILL }},

		{ &hf_dhcp_option_dhcp_authentication_rdm_replay_detection,
		  { "RDM Replay Detection Value", "dhcp.option.dhcp_authentication.rdm_replay_detection",
		    FT_UINT64, BASE_HEX, NULL, 0x0,
		    "Option 90: RDM Replay Detection Value", HFILL }},

		{ &hf_dhcp_option_dhcp_authentication_rdm_rdv,
		  { "Replay Detection Value", "dhcp.option.dhcp_authentication.rdm_rdv",
		    FT_STRINGZ, BASE_NONE, NULL, 0x0,
		    "Option 90: Replay Detection Value", HFILL }},

		{ &hf_dhcp_option_dhcp_authentication_secret_id,
		  { "Secret ID", "dhcp.option.dhcp_authentication.secret_id",
		    FT_UINT32, BASE_HEX, NULL, 0x0,
		    "Option 90: Secret ID", HFILL }},

		{ &hf_dhcp_option_dhcp_authentication_hmac_md5_hash,
		  { "HMAC MD5 Hash", "dhcp.option.dhcp_authentication.hmac_md5_hash",
		    FT_BYTES, BASE_NONE, NULL, 0x0,
		    "Option 90: HMAC MD5 Hash", HFILL }},

		{ &hf_dhcp_option_dhcp_authentication_information,
		  { "Authentication Information", "dhcp.option.dhcp_authentication.information",
		    FT_STRINGZ, BASE_NONE, NULL, 0x0,
		    "Option 90: Authentication Information", HFILL }},

		{ &hf_dhcp_option_client_last_transaction_time,
		  { "Client last transaction time", "dhcp.option.client_last_transaction_time",
		    FT_UINT32, BASE_CUSTOM, CF_FUNC(dhcp_time_in_u_secs_fmt), 0x0,
		    "Option 91: Client last transaction time", HFILL }},

		{ &hf_dhcp_option_associated_ip_option,
		  { "Associated IP option", "dhcp.option.associated_ip_option",
		    FT_IPv4, BASE_NONE, NULL, 0x00,
		    "Option 92: Associated IP option", HFILL }},

		{ &hf_dhcp_option_client_system_architecture,
		  { "Client System Architecture", "dhcp.option.client_system_architecture",
		    FT_UINT16, BASE_DEC, VALS(dhcp_client_arch), 0x0,
		    "Option 93: Client System Architecture", HFILL }},

		{ &hf_dhcp_option_client_network_id_major_ver,
		  { "Major Version", "dhcp.client_network_id_major",
		    FT_UINT8, BASE_DEC, NULL, 0x0,
		    "Option 94: Major Version", HFILL }},

		{ &hf_dhcp_option_client_network_id_minor_ver,
		  { "Minor Version", "dhcp.client_network_id_minor",
		    FT_UINT8, BASE_DEC, NULL, 0x0,
		    "Option 94: Minor Version", HFILL }},

		{ &hf_dhcp_option_civic_location_what,
		  { "What", "dhcp.option.civic_location.what",
		    FT_UINT8, BASE_DEC, VALS(civic_address_what_values), 0x0,
		    "Option 99: What", HFILL }},

		{ &hf_dhcp_option_civic_location_country,
		  { "Country", "dhcp.option.civic_location.country",
		    FT_STRINGZ, BASE_NONE, NULL, 0x0,
		    "Option 99: Country", HFILL }},

		{ &hf_dhcp_option_civic_location_ca_type,
		  { "CA Type", "dhcp.option.civic_location.ca_type",
		    FT_UINT8, BASE_DEC, VALS(civic_address_type_values), 0x0,
		    "Option 99: CA Type", HFILL }},

		{ &hf_dhcp_option_civic_location_ca_length,
		  { "CA Length", "dhcp.option.civic_location.ca_length",
		    FT_UINT8, BASE_DEC, NULL, 0x0,
		    "Option 99: CA Length", HFILL }},

		{ &hf_dhcp_option_civic_location_ca_value,
		  { "CA Value", "dhcp.option.civic_location.ca_value",
		    FT_STRINGZ, BASE_NONE, NULL, 0x0,
		    "Option 99: CA Value", HFILL }},

		{ &hf_dhcp_option_tz_pcode,
		  { "TZ PCode", "dhcp.option.tz_pcode",
		    FT_STRING, BASE_NONE, NULL, 0x0,
		    "Option 100: TZ PCode", HFILL  }},

		{ &hf_dhcp_option_tz_tcode,
		  { "TZ TCode", "dhcp.option.tz_tcode",
		    FT_STRING, BASE_NONE, NULL, 0x0,
		    "Option 101: TZ TCode", HFILL  }},

		{ &hf_dhcp_option_netinfo_parent_server_address,
		  { "NetInfo Parent Server Address", "dhcp.option.netinfo_parent_server_address",
		    FT_IPv4, BASE_NONE, NULL, 0x00,
		    "Option 112: NetInfo Parent Server Address", HFILL }},

		{ &hf_dhcp_option_netinfo_parent_server_tag,
		  { "NetInfo Parent Server Tag", "dhcp.option.netinfo_parent_server_tag",
		    FT_STRINGZ, BASE_NONE, NULL, 0x0,
		    "Option 113: NetInfo Parent Server Tag", HFILL }},

		{ &hf_dhcp_option_dhcp_auto_configuration,
		  { "DHCP Auto-Configuration", "dhcp.option.dhcp_auto_configuration",
		    FT_UINT8, BASE_DEC, VALS(dhcp_autoconfig), 0x0,
		    "Option 116: DHCP Auto-Configuration", HFILL }},

		{ &hf_dhcp_option_dhcp_name_service_search_option,
		  { "Name Service", "dhcp.option.dhcp_name_service_search_option",
		    FT_STRINGZ, BASE_NONE, NULL, 0x0,
		    "Option 117: Name Service", HFILL }},

		{ &hf_dhcp_option_dhcp_dns_domain_search_list_rfc_3396_detected,
		  { "Encoding Long Options detected (RFC 3396)", "dhcp.option.dhcp_dns_domain_search_list_rfc_3396_detected",
		    FT_STRINGZ, BASE_NONE, NULL, 0x0,
		    "Option 119: Encoding Long Options detected (RFC 3396)", HFILL }},

		{ &hf_dhcp_option_dhcp_dns_domain_search_list_refer_last_option,
		  { "For the data, please refer to last option 119", "dhcp.option.dhcp_dns_domain_search_list_refer_last_option",
		    FT_STRINGZ, BASE_NONE, NULL, 0x0,
		    "Option 119: For the data, please refer to last option 119", HFILL }},

		{ &hf_dhcp_option_dhcp_dns_domain_search_list_fqdn,
		  { "FQDN", "dhcp.option.dhcp_dns_domain_search_list_fqdn",
		    FT_STRINGZ, BASE_NONE, NULL, 0x0,
		    "Option 119: FQDN", HFILL }},

		{ &hf_dhcp_option_sip_server_rfc_3396_detected,
		  { "Encoding Long Options detected (RFC 3396)", "dhcp.option.sip_server.rfc_3396_detected",
		    FT_STRINGZ, BASE_NONE, NULL, 0x0,
		    "Option 120: Encoding Long Options detected (RFC 3396)", HFILL }},

		{ &hf_dhcp_option_sip_server_refer_last_option,
		  { "For the data, please refer to last option 120", "dhcp.option.sip_server.refer_last_option",
		    FT_STRINGZ, BASE_NONE, NULL, 0x0,
		    "Option 120: For the data, please refer to last option 120", HFILL }},

		{ &hf_dhcp_option_sip_server_enc,
		  { "SIP Server Encoding", "dhcp.option.sip_server.encoding",
		    FT_UINT8, BASE_DEC, VALS(sip_server_enc_vals), 0x0,
		    "Option 120: SIP Server encoding", HFILL }},

		{ &hf_dhcp_option_sip_server_name,
		  { "SIP Server Name", "dhcp.option.sip_server.name",
		    FT_STRINGZ, BASE_NONE, NULL, 0x0,
		    "Option 120: SIP Server Name", HFILL }},

		{ &hf_dhcp_option_sip_server_address,
		  { "SIP Server Address", "dhcp.option.sip_server.address",
		    FT_IPv4, BASE_NONE, NULL, 0x0,
		    "Option 120: SIP Server Address", HFILL }},

		{ &hf_dhcp_option_classless_static_route,
		  { "Subnet/MaskWidth-Router", "dhcp.option.classless_static_route",
		    FT_BYTES, BASE_NONE, NULL, 0x0,
		    "Option 121: Subnet/MaskWidth-Router", HFILL }},

		{ &hf_dhcp_option_rfc3825_error,
		  { "Error", "dhcp.option.rfc3825.error",
		    FT_UINT8, BASE_DEC, VALS(rfc3825_error_types), 0x0,
		    "Option 123: Error", HFILL }},

		{ &hf_dhcp_option_rfc3825_latitude,
		  { "Latitude", "dhcp.option.rfc3825.latitude",
		    FT_DOUBLE, BASE_NONE, NULL, 0x0,
		    "Option 123: Latitude", HFILL }},

		{ &hf_dhcp_option_rfc3825_longitude,
		  { "Longitude", "dhcp.option.rfc3825.longitude",
		    FT_DOUBLE, BASE_NONE, NULL, 0x0,
		    "Option 123: Longitude", HFILL }},

		{ &hf_dhcp_option_rfc3825_latitude_res,
		  { "Latitude resolution", "dhcp.option.rfc3825.latitude_res",
		    FT_DOUBLE, BASE_NONE, NULL, 0x0,
		    "Option 123: Latitude resolution", HFILL }},

		{ &hf_dhcp_option_rfc3825_longitude_res,
		  { "Longitude resolution", "dhcp.option.rfc3825.longitude_res",
		    FT_DOUBLE, BASE_NONE, NULL, 0x0,
		    "Option 123: Longitude resolution", HFILL }},

		{ &hf_dhcp_option_rfc3825_altitude,
		  { "Altitude", "dhcp.option.rfc3825.altitude",
		    FT_DOUBLE, BASE_NONE, NULL, 0x0,
		    "Option 123: Altitude", HFILL }},

		{ &hf_dhcp_option_rfc3825_altitude_res,
		  { "Altitude resolution", "dhcp.option.rfc3825.altitude_res",
		    FT_DOUBLE, BASE_NONE, NULL, 0x0,
		    "Option 123: Altitude resolution", HFILL }},

		{ &hf_dhcp_option_rfc3825_altitude_type,
		  { "Altitude type", "dhcp.option.rfc3825.altitude_type",
		    FT_UINT8, BASE_DEC, VALS(altitude_type_values), 0x0,
		    "Option 123: Altitude type", HFILL }},

		{ &hf_dhcp_option_rfc3825_map_datum,
		  { "Map Datum", "dhcp.option.rfc3825.map_datum",
		    FT_UINT8, BASE_DEC, VALS(map_datum_type_values), 0x0,
		    "Option 123: Map Datum", HFILL }},

		{ &hf_dhcp_option_cl_dss_id_option,
		  { "DSS_ID Type", "dhcp.option.cl_dss_id.option",
		    FT_UINT8, BASE_DEC, VALS(cl_dss_id_type_vals), 0x0,
		    "Option 123:CL DSS_ID Type", HFILL }},

		{ &hf_dhcp_option_cl_dss_id_len,
		  { "DSS_ID Length", "dhcp.option.cl_dss_id.len",
		    FT_UINT8, BASE_DEC, NULL, 0x0,
		    "Option 123:CL DSS_ID Length", HFILL }},

		{ &hf_dhcp_option_cl_dss_id,
		  { "Country", "dhcp.option.cl_dss_id",
		    FT_STRINGZ, BASE_NONE, NULL, 0x0,
		    "Option 123:CL DSS_ID", HFILL }},

		{ &hf_dhcp_option_vi_class_cl_address_mode,
		  { "CableLab Address Mode", "dhcp.option.vi_class.cl_address_mode",
		    FT_UINT8, BASE_DEC, VALS(cablelab_ipaddr_mode_vals), 0x0,
		    "Option 124: CableLab Address Mode", HFILL }},

		{ &hf_dhcp_option_vi_class_enterprise,
		  { "Enterprise", "dhcp.option.vi_class.enterprise",
		    FT_UINT32, BASE_ENTERPRISES, STRINGS_ENTERPRISES, 0x00,
		    "Option 124: Enterprise", HFILL }},

		{ &hf_dhcp_option_vi_class_data_length,
		  { "Length", "dhcp.option.vi_class.length",
		    FT_UINT8, BASE_DEC, NULL, 0x0,
		    "Option 124: Length", HFILL }},

		{ &hf_dhcp_option_vi_class_data_item_length,
		  { "Length", "dhcp.option.vi_class.vendor_class_data.item.length",
		    FT_UINT8, BASE_DEC, NULL, 0x0,
		    "Option 124: Length", HFILL }},

		{ &hf_dhcp_option_vi_class_data_item_data,
		  { "Data", "dhcp.option.vi_class.vendor_class_data.item.data",
		    FT_BYTES, BASE_NONE, NULL, 0x0,
		    "Option 124: Data", HFILL }},

		{ &hf_dhcp_option125_enterprise,
		  { "Enterprise", "dhcp.option.vi.enterprise",
		    FT_UINT32, BASE_ENTERPRISES, STRINGS_ENTERPRISES, 0x00,
		    "Option 125: Enterprise", HFILL }},

		{ &hf_dhcp_option125_length,
		  { "Length", "dhcp.option.vi.length",
		    FT_UINT8, BASE_DEC, NULL, 0x00,
		    "Option 125: Length", HFILL }},

		{ &hf_dhcp_option125_value,
		  { "Value", "dhcp.option.vi.value",
		    FT_BYTES, BASE_NONE, NULL, 0x0,
		    "Option 125: Suboption value", HFILL }},

		{ &hf_dhcp_option125_value_8,
		  { "Value", "dhcp.option.vi.value.uint",
		    FT_UINT8, BASE_DEC, NULL, 0x0,
		    "Option 125: Suboption 8-bit value", HFILL }},

		{ &hf_dhcp_option125_value_16,
		  { "Value", "dhcp.option.vi.value.uint",
		    FT_UINT16, BASE_DEC, NULL, 0x0,
		    "Option 125: Suboption 16-bit value", HFILL }},

		{ &hf_dhcp_option125_value_ip_address,
		  { "Value", "dhcp.option.vi.value.address",
		    FT_IPv4, BASE_NONE, NULL, 0x00,
		    "Option 125: Suboption IP address value", HFILL }},

		{ &hf_dhcp_option125_value_stringz,
		  { "Value", "dhcp.option.vi.value.string",
		    FT_STRINGZ, BASE_NONE, NULL, 0x0,
		    "Option 125: Suboption Z-String value", HFILL }},

		{ &hf_dhcp_option125_tr111_suboption,
		  { "Option 125 Suboption", "dhcp.option.vi.tr111.suboption",
		    FT_UINT8, BASE_DEC, VALS(option125_tr111_suboption_vals), 0x0,
		    "Option 125:TR 111 Suboption", HFILL }},

		{ &hf_dhcp_option125_tr111_device_manufacturer_oui,
		  { "DeviceManufacturerOUI", "dhcp.option.vi.tr111.device_manufacturer_oui",
		    FT_UINT24, BASE_OUI, NULL, 0x0,
		    "Option 125:TR 111 1 DeviceManufacturerOUI", HFILL }},

		{ &hf_dhcp_option125_tr111_device_serial_number,
		  { "DeviceSerialNumber", "dhcp.option.vi.tr111.device_serial_number",
		    FT_STRINGZ, BASE_NONE, NULL, 0x0,
		    "Option 125:TR 111 2 DeviceSerialNumber", HFILL }},

		{ &hf_dhcp_option125_tr111_device_product_class,
		  { "DeviceProductClass", "dhcp.option.vi.tr111.device_product_class",
		    FT_STRINGZ, BASE_NONE, NULL, 0x0,
		    "Option 125:TR 111 3 DeviceProductClass", HFILL }},

		{ &hf_dhcp_option125_tr111_gateway_manufacturer_oui,
		  { "GatewayManufacturerOUI", "dhcp.option.vi.tr111.gateway_manufacturer_oui",
		    FT_STRINGZ, BASE_NONE, NULL, 0x0,
		    "Option 125:TR 111 4 GatewayManufacturerOUI", HFILL }},

		{ &hf_dhcp_option125_tr111_gateway_serial_number,
		  { "GatewaySerialNumber", "dhcp.option.vi.tr111.gateway_serial_number",
		    FT_STRINGZ, BASE_NONE, NULL, 0x0,
		    "Option 125:TR 111 5 GatewaySerialNumber", HFILL }},

		{ &hf_dhcp_option125_tr111_gateway_product_class,
		  { "GatewayProductClass", "dhcp.option.vi.tr111.gateway_product_class",
		    FT_STRINGZ, BASE_NONE, NULL, 0x0,
		    "Option 125:TR 111 6 GatewayProductClass", HFILL }},

		{ &hf_dhcp_option125_cl_suboption,
		  { "Option 125 Suboption", "dhcp.option.vi.cl.suboption",
		    FT_UINT8, BASE_DEC, VALS(option125_cl_suboption_vals), 0x0,
		    "Option 125:CL Suboption", HFILL }},

		{ &hf_dhcp_option125_cl_option_request,
		  { "Option Request", "dhcp.option.vi.cl.option_request",
		    FT_BYTES, SEP_SPACE, NULL, 0x0,
		    "Option 125:CL 1 Option Request", HFILL }},

		{ &hf_dhcp_option125_cl_tftp_server_addresses,
		  { "TFTP Server Addresses", "dhcp.option.vi.cl.tftp_server_addresses",
		    FT_IPv4, BASE_NONE, NULL, 0x00,
		    "Option 125:CL 2 TFTP Server Addresses", HFILL }},

		{ &hf_dhcp_option125_cl_erouter_container_option,
		  { "eRouter Container Option", "dhcp.option.vi.cl.erouter_container_option",
		    FT_BYTES, BASE_NONE, NULL, 0x0,
		    "Option 125:CL 3 eRouter Container Option", HFILL }},

		{ &hf_dhcp_option125_cl_mib_environment_indicator_option,
		  { "MIB Environment Indicator Option", "dhcp.option.vi.cl.suboption",
		    FT_UINT8, BASE_DEC, VALS(pkt_mib_env_ind_opt_vals), 0x0,
		    "Option 125:CL 4 MIB Environment Indicator Option", HFILL }},

		{ &hf_dhcp_option125_cl_modem_capabilities,
		  { "Modem Capabilities", "dhcp.option.vi.cl.modem_capabilities",
		    FT_BYTES, BASE_NONE, NULL, 0x0,
		    "Option 125:CL 5 Modem Capabilities", HFILL }},

		{ &hf_dhcp_option_subnet_selection_option,
		  { "Subnet Selection Option", "dhcp.option.subnet_selection_option",
		    FT_IPv4, BASE_NONE, NULL, 0x00,
		    "Option 118: Subnet Selection Option", HFILL }},

		{ &hf_dhcp_option_pana_agent,
		  { "PAA IPv4 Address", "dhcp.option.pana_agent",
		    FT_IPv4, BASE_NONE, NULL, 0x0,
		    "Protocol for Carrying Authentication for Network Access (PANA) Authentication Agents IPv4 Address", HFILL }},

		{ &hf_dhcp_option_lost_server_domain_name,
		  { "LoST Server Domain Name", "dhcp.option.lost_server_domain_name",
		    FT_STRINGZ, BASE_NONE, NULL, 0x0,
		    "Option 137: LoST Server Domain Name", HFILL }},

		{ &hf_dhcp_option_capwap_access_controller,
		  { "CAPWAP Access Controllers", "dhcp.option.capwap_access_controller",
		    FT_IPv4, BASE_NONE, NULL, 0x00,
		    "Option 138: CAPWAP Access Controllers", HFILL }},

		{ &hf_dhcp_option_andsf_server,
		  { "ANDSF Server", "dhcp.option.andsf_server",
		    FT_IPv4, BASE_NONE, NULL, 0x00,
		    "ANDSF (Access Network Discovery and Selection Function) Server", HFILL }},

		{ &hf_dhcp_option_forcerenew_nonce_algo,
		  { "Algorithm", "dhcp.option.forcerenew_nonce.algorithm",
		    FT_UINT8, BASE_DEC, VALS(forcerenew_nonce_algo_vals), 0x00,
		    "Forcenew Nonce Algorithm", HFILL }},

		{ &hf_dhcp_option_rdnss_reserved,
		  { "Reserved", "dhcp.option.rdnss.reserved",
		    FT_UINT8, BASE_HEX, NULL, 0xfc,
		    "RDNSS Reserved", HFILL }},

		{ &hf_dhcp_option_rdnss_pref,
		  { "Preference", "dhcp.option.rdnss.preference",
		    FT_UINT8, BASE_DEC, VALS(rdnss_pref_vals), 0x03,
		    "RDNSS (Recursive DNS Server) Preference", HFILL }},

		{ &hf_dhcp_option_rdnss_prim_dns_server,
		  { "Primary DNS", "dhcp.option.rdnss.primary_dns",
		    FT_IPv4, BASE_NONE, NULL, 0x00,
		    "RDNSS Primary DNS-recursive-name-server's IPv4 address", HFILL }},

		{ &hf_dhcp_option_rdnss_sec_dns_server,
		  { "Secondary DNS", "dhcp.option.rdnss.secondary_dns",
		    FT_IPv4, BASE_NONE, NULL, 0x00,
		    "RDNSS Secondary DNS-recursive-name-server's IPv4 address", HFILL }},

		{ &hf_dhcp_option_rdnss_domain,
		  { "Domains and networks", "dhcp.option.rdnss.domain",
		    FT_STRING, BASE_NONE, NULL, 0x00,
		    "RDNSS Domains and networks", HFILL }},

		{ &hf_dhcp_option_tftp_server_address,
		  { "TFTP Server Address", "dhcp.option.tftp_server_address",
		    FT_IPv4, BASE_NONE, NULL, 0x00,
		    "Option 150: TFTP Server Address", HFILL }},

		{ &hf_dhcp_option_bulk_lease_status_code,
		  { "Status Code", "dhcp.option.bulk_lease.status_code",
		    FT_UINT8, BASE_DEC, VALS(bulk_lease_dhcp_status_code_vals), 0x00,
		    "DHCPv4 Bulk Leasequery Status Code", HFILL }},

		{ &hf_dhcp_option_bulk_lease_status_message,
		  { "Status Code Message", "dhcp.option.bulk_lease.status_code_message",
		    FT_STRING, BASE_NONE, NULL, 0x00,
		    "DHCPv4 Bulk Leasequery Status Code Message", HFILL }},

		{ &hf_dhcp_option_bulk_lease_base_time,
		  { "Base Time", "dhcp.option.bulk_lease.base_time",
		    FT_ABSOLUTE_TIME, ABSOLUTE_TIME_LOCAL, NULL, 0x00,
		    "DHCPv4 Bulk Leasequery Base Time", HFILL }},

		{ &hf_dhcp_option_bulk_lease_start_time_of_state,
		  { "Start Time Of State", "dhcp.option.bulk_lease.start_time_of_state",
		    FT_UINT32, BASE_CUSTOM, CF_FUNC(dhcp_time_in_u_secs_fmt), 0x0,
		    "DHCPv4 Bulk Leasequery Start Time Of State", HFILL }},

		{ &hf_dhcp_option_bulk_lease_query_start,
		  { "Query Start Time", "dhcp.option.bulk_lease.query_start_time",
		    FT_ABSOLUTE_TIME, ABSOLUTE_TIME_LOCAL, NULL, 0x00,
		    "DHCPv4 Bulk Leasequery Query Start Time", HFILL }},

		{ &hf_dhcp_option_bulk_lease_query_end,
		  { "Query End Time", "dhcp.option.bulk_lease.query_end_time",
		    FT_ABSOLUTE_TIME, ABSOLUTE_TIME_LOCAL, NULL, 0x00,
		    "DHCPv4 Bulk Leasequery Query End Time", HFILL }},

		{ &hf_dhcp_option_bulk_lease_dhcp_state,
		  { "Dhcp State", "dhcp.option.bulk_lease.dhcp_state",
		    FT_UINT8, BASE_DEC, VALS(bulk_lease_dhcp_state_vals), 0x00,
		    "DHCPv4 Bulk Leasequery Dhcp State", HFILL }},

		{ &hf_dhcp_option_bulk_lease_data_source,
		  { "Data Source", "dhcp.option.bulk_lease.data_source",
		    FT_BOOLEAN, BASE_NONE, TFS(&tfs_bulk_lease_data_source), 0x00,
		    "DHCPv4 Bulk Leasequery Data Source", HFILL }},

		{ &hf_dhcp_option_pcp_list_length,
		  { "List-Length", "dhcp.option.pcp.list_length",
		    FT_UINT8, BASE_DEC, NULL, 0x0,
		    "Port Control Protocol (PCP) List Length", HFILL }},

		{ &hf_dhcp_option_pcp_server,
		  { "PCP Server", "dhcp.option.pcp.server",
		    FT_IPv4, BASE_NONE, NULL, 0x0,
		    "Port Control Protocol (PCP) Server", HFILL }},

		{ &hf_dhcp_option_portparams_offset,
		  { "Offset", "dhcp.option.portparams.offset",
		    FT_UINT8, BASE_DEC, NULL, 0x0,
		    "Port Set ID (PSID) offset", HFILL }},

		{ &hf_dhcp_option_portparams_psid_length,
		  { "PSID-Length", "dhcp.option.portparams.psid_length",
		    FT_UINT8, BASE_DEC, NULL, 0x0,
		    "Port Set ID (PSID) Length", HFILL }},

		{ &hf_dhcp_option_portparams_psid,
		  { "PSID", "dhcp.option.portparams.psid",
		    FT_BYTES, BASE_NONE, NULL, 0x0,
		    "Port Set ID (PSID)", HFILL }},

		{ &hf_dhcp_option_mudurl,
		  { "MUDURL", "dhcp.option.mudurl",
		    FT_STRING, BASE_NONE, NULL, 0x0,
		    "Option 161: MUDURL", HFILL  }},

		{ &hf_dhcp_option_pxe_config_file,
		  { "PXELINUX configuration file", "dhcp.option.pxe_config_file",
		    FT_STRING, BASE_NONE, NULL, 0x0,
		    "Option 209: PXE Configuration File", HFILL }},

		{ &hf_dhcp_option_pxe_path_prefix,
		  { "PXELINUX path prefix", "dhcp.option.pxe_path_prefix",
		    FT_STRING, BASE_NONE, NULL, 0x0,
		    "Option 210: PXE Path Prefix", HFILL }},

		{ &hf_dhcp_option_captive_portal,
		  { "Captive Portal", "dhcp.option.captive_portal",
		    FT_STRING, BASE_NONE, NULL, 0x0,
		    "The contact URI for the captive portal that the user should connect to", HFILL }},

		{ &hf_dhcp_option_6RD_ipv4_mask_len,
		  { "6RD IPv4 Mask Length", "dhcp.option.6RD.ipv4_mask_len",
		    FT_UINT8, BASE_DEC, NULL, 0x0,
		    "Option 212: 6RD IPv4 Mask Length", HFILL }},

		{ &hf_dhcp_option_6RD_prefix_len,
		  { "6RD Prefix Length", "dhcp.option.6RD.prefix_len",
		    FT_UINT8, BASE_DEC, NULL, 0x0,
		    "Option 212: 6RD Prefix Length", HFILL }},

		{ &hf_dhcp_option_6RD_prefix,
		  { "6RD Prefix", "dhcp.option.6RD.prefix",
		    FT_IPv6, BASE_NONE, NULL, 0x00,
		    "Option 212: 6RD Prefix", HFILL }},

		{ &hf_dhcp_option_6RD_border_relay_ip,
		  { "Border Relay IP", "dhcp.option.6RD.border_relay_ip",
		    FT_IPv4, BASE_NONE, NULL, 0x00,
		    "Option 212: Border Relay IP", HFILL }},

		{ &hf_dhcp_option_private_proxy_autodiscovery,
		  { "Private/Proxy autodiscovery", "dhcp.option.private_proxy_autodiscovery",
		    FT_STRINGZ, BASE_NONE, NULL, 0x0,
		    "Option 252: Private/Proxy autodiscovery", HFILL }},

		{ &hf_dhcp_option_end,
		  { "Option End", "dhcp.option.end",
		    FT_UINT8, BASE_DEC, NULL, 0x0,
		    "Option 255: End", HFILL }},

		{ &hf_dhcp_option_end_overload,
		  { "Option End (Overload)", "dhcp.option.end",
		    FT_UINT8, BASE_DEC, NULL, 0x0,
		    "Option 255: End (Overload)", HFILL }},

		{ &hf_dhcp_vendor_unknown_suboption,
		  { "Option 125 Suboption", "dhcp.vendor.suboption",
		    FT_UINT8, BASE_DEC, NULL, 0x0,
		    NULL, HFILL }},

		{ &hf_dhcp_suboption_data,
		  { "Data", "dhcp.vendor.data",
		    FT_BYTES, BASE_NONE, NULL, 0x0,
		    NULL, HFILL }},

		{ &hf_dhcp_pc_ietf_ccc_suboption,
		  { "Suboption", "dhcp.vendor.pc.ietf_ccc.suboption",
		    FT_UINT8, BASE_DEC, VALS(pkt_draft5_ccc_opt_vals), 0x0,
		    NULL, HFILL }},

		{ &hf_dhcp_pc_i05_ccc_suboption,
		  { "Suboption", "dhcp.vendor.pc.i05_ccc.suboption",
		    FT_UINT8, BASE_DEC, VALS(pkt_i05_ccc_opt_vals), 0x0,
		    NULL, HFILL }},

		{ &hf_dhcp_cl_ietf_ccc_dev_realm_unc_key_nom_timeout,
		  { "pktcMtaDevRealmUnsolicitedKeyNomTimeout", "dhcp.cl.ietf_ccc.dev_realm_unc_key_nom_timeout",
		    FT_UINT32, BASE_DEC, NULL, 0x0,
		    NULL, HFILL }},

		{ &hf_dhcp_cl_ietf_ccc_dev_realm_unc_key_max_timeout,
		  { "pktcMtaDevRealmUnsolicitedKeyMaxTimeout", "dhcp.cl.ietf_ccc.dev_realm_unc_key_max_timeout",
		    FT_UINT32, BASE_DEC, NULL, 0x0,
		    NULL, HFILL }},

		{ &hf_dhcp_cl_ietf_ccc_dev_realm_unc_key_max_retries,
		  { "pktcMtaDevRealmUnsolicitedKeyMaxRetries", "dhcp.cl.ietf_ccc.dev_realm_unc_key_max_retries",
		    FT_UINT32, BASE_DEC, NULL, 0x0,
		    NULL, HFILL }},

		{ &hf_dhcp_cl_ietf_ccc_dev_prov_unc_key_nom_timeout,
		  { "pktcMtaDevProvUnsolicitedKeyNomTimeout", "dhcp.cl.ietf_ccc.dev_prov_unc_key_nom_timeout",
		    FT_UINT32, BASE_DEC, NULL, 0x0,
		    NULL, HFILL }},

		{ &hf_dhcp_cl_ietf_ccc_dev_prov_unc_key_max_timeout,
		  { "pktcMtaDevProvUnsolicitedKeyMaxTimeout", "dhcp.cl.ietf_ccc.dev_prov_unc_key_max_timeout",
		    FT_UINT32, BASE_DEC, NULL, 0x0,
		    NULL, HFILL }},

		{ &hf_dhcp_cl_ietf_ccc_dev_prov_unc_key_max_retries,
		  { "pktcMtaDevProvUnsolicitedKeyMaxRetries", "dhcp.cl.ietf_ccc.dev_prov_unc_key_max_retries",
		    FT_UINT32, BASE_DEC, NULL, 0x0,
		    NULL, HFILL }},

		{ &hf_dhcp_ccc_ietf_sec_tkt_pc_provision_server,
		  { "Invalidate PacketCable Provisioning Server", "dhcp.ccc.ietf.sec_tkt.pc_provision_server",
		    FT_BOOLEAN, 16, TFS(&tfs_yes_no), 0x0001,
		    NULL, HFILL }},

		{ &hf_dhcp_ccc_ietf_sec_tkt_all_pc_call_management,
		  { "Invalidate All PacketCable Call Management Servers", "dhcp.ccc.ietf.sec_tkt.all_pc_call_management",
		    FT_BOOLEAN, 16, TFS(&tfs_yes_no), 0x0002,
		    NULL, HFILL }},

		{ &hf_dhcp_option242_avaya,
		  { "Private/Avaya IP Telephone",  "dhcp.option.vendor.avaya",
		    FT_STRINGZ, BASE_NONE, NULL, 0x0,
		    "Option 242: Private/Avaya IP Telephone", HFILL }},

		{ &hf_dhcp_option242_avaya_tlssrvr,
		  { "TLSSRVR",  "dhcp.option.vendor.avaya.tlssrvr",
		    FT_STRINGZ, BASE_NONE, NULL, 0x0,
		    "Option 242: TLSSRVR (HTTPS server(s) to download configuration)", HFILL }},

		{ &hf_dhcp_option242_avaya_httpsrvr,
		  { "HTTPSRVR",  "dhcp.option.vendor.avaya.httpsrvr",
		    FT_STRINGZ, BASE_NONE, NULL, 0x0,
		    "Option 242: HTTPSRVR (HTTP server(s) to download configuration)", HFILL }},

		{ &hf_dhcp_option242_avaya_httpdir,
		  { "HTTPDIR",  "dhcp.option.vendor.avaya.httpdir",
		    FT_STRINGZ, BASE_NONE, NULL, 0x0,
		    "Option 242: HTTPDIR (Path to configuration files)", HFILL }},

		{ &hf_dhcp_option242_avaya_static,
		  { "STATIC",  "dhcp.option.vendor.avaya.static",
		    FT_STRINGZ, BASE_NONE, NULL, 0x0,
		    "Option 242: STATIC (Static programming override flag)", HFILL }},

		{ &hf_dhcp_option242_avaya_mcipadd,
		  { "MCIPADD",  "dhcp.option.vendor.avaya.mcipadd",
		    FT_STRINGZ, BASE_NONE, NULL, 0x0,
		    "Option 242: MCIPADD (List of CM server(s))", HFILL }},

		{ &hf_dhcp_option242_avaya_dot1x,
		  { "DOT1X",  "dhcp.option.vendor.avaya.dot1x",
		    FT_STRINGZ, BASE_NONE, NULL, 0x0,
		    "Option 242: DOT1X (802.1X Supplicant operation mode)", HFILL }},

		{ &hf_dhcp_option242_avaya_icmpdu,
		  { "ICMPDU",  "dhcp.option.vendor.avaya.icmpdu",
		    FT_STRINGZ, BASE_NONE, NULL, 0x0,
		    "Option 242: ICMPDU (ICMP Destination Unreachable processing)", HFILL }},

		{ &hf_dhcp_option242_avaya_icmpred,
		  { "ICMPRED",  "dhcp.option.vendor.avaya.icmpred",
		    FT_STRINGZ, BASE_NONE, NULL, 0x0,
		    "Option 242: ICMPRED (ICMP Redirect handling)", HFILL }},

		{ &hf_dhcp_option242_avaya_l2q,
		  { "L2Q",  "dhcp.option.vendor.avaya.l2q",
		    FT_STRINGZ, BASE_NONE, NULL, 0x0,
		    "Option 242: L2Q (Controls 802.1Q tagging)", HFILL }},

		{ &hf_dhcp_option242_avaya_l2qvlan,
		  { "L2QVLAN",  "dhcp.option.vendor.avaya.l2qvlan",
		    FT_INT32, BASE_DEC, NULL, 0x0,
		    "Option 242: L2QVLAN (VLAN ID)", HFILL }},

		{ &hf_dhcp_option242_avaya_loglocal,
		  { "LOGLOCAL",  "dhcp.option.vendor.avaya.loglocal",
		    FT_STRINGZ, BASE_NONE, NULL, 0x0,
		    "Option 242: LOGLOCAL (Log level)", HFILL }},

		{ &hf_dhcp_option242_avaya_phy1stat,
		  { "PHY1STAT",  "dhcp.option.vendor.avaya.phy1stat",
		    FT_STRINGZ, BASE_NONE, NULL, 0x0,
		    "Option 242: PHY1STAT (Interface configuration)", HFILL }},

		{ &hf_dhcp_option242_avaya_phy2stat,
		  { "PHY2STAT",  "dhcp.option.vendor.avaya.phy2stat",
		    FT_STRINGZ, BASE_NONE, NULL, 0x0,
		    "Option 242: PHY2STAT (Interface configuration)", HFILL }},

		{ &hf_dhcp_option242_avaya_procpswd,
		  { "PROCPSWD",  "dhcp.option.vendor.avaya.procpswd",
		    FT_STRINGZ, BASE_NONE, NULL, 0x0,
		    "Option 242: PROCPSWD (Security string used to access local procedures)", HFILL }},

		{ &hf_dhcp_option242_avaya_procstat,
		  { "PROCSTAT",  "dhcp.option.vendor.avaya.procstat",
		    FT_STRINGZ, BASE_NONE, NULL, 0x0,
		    "Option 242: PROCSTAT (Local (dialpad) Administrative access)", HFILL }},

		{ &hf_dhcp_option242_avaya_snmpadd,
		  { "SNMPADD",  "dhcp.option.vendor.avaya.snmpadd",
		    FT_STRINGZ, BASE_NONE, NULL, 0x0,
		    "Option 242: SNMPADD (Allowable source IP Address(es) for SNMP queries)", HFILL }},

		{ &hf_dhcp_option242_avaya_snmpstring,
		  { "SNMPSTRING",  "dhcp.option.vendor.avaya.snmpstring",
		    FT_STRINGZ, BASE_NONE, NULL, 0x0,
		    "Option 242: SNMPSTRING (SNMP community string)", HFILL }},

		{ &hf_dhcp_option242_avaya_vlantest,
		  { "VLANTEST",  "dhcp.option.vendor.avaya.vlantest",
		    FT_INT32, BASE_DEC, NULL, 0x0,
		    "Option 242: VLANTEST (Timeout in seconds)", HFILL }},

		/* Cisco vendor suboptions */
		{ &hf_dhcp_option43_cisco_suboption,
		  { "Option 43 Suboption", "dhcp.option.vendor.cisco.suboption",
		    FT_UINT8, BASE_DEC, VALS(option43_cisco_suboption_vals), 0x0,
		    "Option 43:Cisco Suboption", HFILL }},

		{ &hf_dhcp_option43_cisco_unknown,
		  { "Unknown", "dhcp.option.vendor.cisco.unknown",
		    FT_BYTES, BASE_NONE, NULL, 0x0,
		    NULL, HFILL }},

		{ &hf_dhcp_option43_cisco_unknown1,
		  { "Unknown1", "dhcp.option.vendor.cisco.unknown1",
		    FT_UINT8, BASE_DEC, NULL, 0x0,
		    NULL, HFILL }},

		{ &hf_dhcp_option43_cisco_unknown2,
		  { "Unknown2", "dhcp.option.vendor.cisco.unknown2",
		    FT_UINT8, BASE_DEC, NULL, 0x0,
		    NULL, HFILL }},

		{ &hf_dhcp_option43_cisco_unknown3,
		  { "Unknown3", "dhcp.option.vendor.cisco.unknown3",
		    FT_UINT16, BASE_DEC, NULL, 0x0,
		    NULL, HFILL }},

		{ &hf_dhcp_option43_cisco_nodeid,
		  { "Node ID", "dhcp.option.vendor.cisco.nodeid",
		    FT_UINT32, BASE_DEC, NULL, 0x0,
		    NULL, HFILL }},

		{ &hf_dhcp_option43_cisco_unknown5,
		  { "Unknown5", "dhcp.option.vendor.cisco.unknown5",
		    FT_UINT8, BASE_DEC, NULL, 0x0,
		    NULL, HFILL }},

		{ &hf_dhcp_option43_cisco_unknown6,
		  { "Unknown6", "dhcp.option.vendor.cisco.unknown6",
		    FT_UINT8, BASE_DEC, NULL, 0x0,
		    NULL, HFILL }},

		{ &hf_dhcp_option43_cisco_model,
		  { "Model", "dhcp.option.vendor.cisco.model",
		    FT_STRING, BASE_NONE, NULL, 0x0,
		    NULL, HFILL }},

		{ &hf_dhcp_option43_cisco_apicuuid,
		  { "APIC UUID", "dhcp.option.vendor.cisco.apicuuid",
		    FT_STRING, BASE_NONE, NULL, 0x0,
		    NULL, HFILL }},

		{ &hf_dhcp_option43_cisco_fabricname,
		  { "Fabricname", "dhcp.option.vendor.cisco.fabricname",
		    FT_STRING, BASE_NONE, NULL, 0x0,
		    NULL, HFILL }},

		{ &hf_dhcp_option43_cisco_unknown10,
		  { "Unknown10", "dhcp.option.vendor.cisco.unknown10",
		    FT_UINT32, BASE_DEC, NULL, 0x0,
		    NULL, HFILL }},

		{ &hf_dhcp_option43_cisco_serialno,
		  { "SerialNo", "dhcp.option.vendor.cisco.serialno",
		    FT_STRING, BASE_NONE, NULL, 0x0,
		    NULL, HFILL }},

		{ &hf_dhcp_option43_cisco_clientint,
		  { "Client Int", "dhcp.option.vendor.cisco.clientint",
		    FT_STRING, BASE_NONE, NULL, 0x0,
		    NULL, HFILL }},
	};

	static uat_field_t dhcp_uat_flds[] = {
		UAT_FLD_DEC(uat_dhcp_records, opt, "Option number", "Custom Option Number"),
		UAT_FLD_CSTRING(uat_dhcp_records, text, "Option Name", "Custom Option Name"),
		UAT_FLD_VS(uat_dhcp_records, ftype, "Option type", dhcp_custom_type_vals, "Option datatype"),
		UAT_END_FIELDS
	};

	static gint *ett[] = {
		&ett_dhcp,
		&ett_dhcp_flags,
		&ett_dhcp_option,
		&ett_dhcp_option43_suboption,
		&ett_dhcp_option43_suboption_discovery,
		&ett_dhcp_option43_suboption_tree,
		&ett_dhcp_option63_suboption,
		&ett_dhcp_option77_instance,
		&ett_dhcp_option82_suboption,
		&ett_dhcp_option82_suboption9,
		&ett_dhcp_option124_vendor_class_data_item,
		&ett_dhcp_option125_suboption,
		&ett_dhcp_option125_tr111_suboption,
		&ett_dhcp_option125_cl_suboption,
		&ett_dhcp_option242_suboption,
		&ett_dhcp_fqdn,
		&ett_dhcp_filename_option,
		&ett_dhcp_server_hostname,
		&ett_dhcp_fqdn_flags,
		&ett_dhcp_isns_functions,
		&ett_dhcp_isns_discovery_domain_access,
		&ett_dhcp_isns_administrative_flags,
		&ett_dhcp_isns_server_security_bitmap,
		&ett_dhcp_isns_secondary_server_addr,
		&ett_dhcp_o43_bsdp_boot_image,
		&ett_dhcp_o43_bsdp_attributes,
		&ett_dhcp_o43_bsdp_image_desc_list,
		&ett_dhcp_o43_bsdp_image_desc,
		&ett_dhcp_o43_bsdp_attributes_flags,
		&ett_dhcp_option158_pcp_list,
	};

	static ei_register_info ei[] = {
		{ &ei_dhcp_bad_length, { "dhcp.bad_length", PI_PROTOCOL, PI_ERROR, "length isn't 0", EXPFILL }},
		{ &ei_dhcp_bad_bitfield, { "dhcp.bad_bitfield", PI_PROTOCOL, PI_ERROR, "Bogus bitfield", EXPFILL }},
		{ &ei_dhcp_missing_subopt_length, { "dhcp.missing_subopt_length", PI_PROTOCOL, PI_ERROR, "no room left in option for suboption length", EXPFILL }},
		{ &ei_dhcp_missing_subopt_value, { "dhcp.missing_subopt_value", PI_PROTOCOL, PI_ERROR, "no room left in option for suboption value", EXPFILL }},
		{ &ei_dhcp_mal_duid, { "dhcp.malformed.duid", PI_PROTOCOL, PI_ERROR, "DUID: malformed option", EXPFILL }},
		{ &hf_dhcp_opt_overload_file_end_missing, { "dhcp.option.option_overload.file_end_missing", PI_PROTOCOL, PI_ERROR, "file overload end option missing", EXPFILL }},
		{ &hf_dhcp_opt_overload_sname_end_missing, { "dhcp.option.option_overload.sname_end_missing", PI_PROTOCOL, PI_ERROR, "sname overload end option missing", EXPFILL }},
		{ &hf_dhcp_subopt_unknown_type, { "dhcp.subopt.unknown_type", PI_PROTOCOL, PI_ERROR, "ERROR, please report: Unknown subopt type handler", EXPFILL }},
		{ &ei_dhcp_option_civic_location_bad_cattype, { "dhcp.option.civic_location.bad_cattype", PI_PROTOCOL, PI_ERROR, "Error with CAType", EXPFILL }},
		{ &ei_dhcp_option_dhcp_name_service_invalid, { "dhcp.option.dhcp_name_service.invalid", PI_PROTOCOL, PI_ERROR, "Invalid Name Service", EXPFILL }},
		{ &ei_dhcp_option_sip_server_address_encoding, { "dhcp.option.sip_server_address.encoding", PI_PROTOCOL, PI_ERROR, "RFC 3361 defines only 0 and 1 for Encoding byte", EXPFILL }},
		{ &ei_dhcp_option_classless_static_route, { "dhcp.option.classless_static.route", PI_PROTOCOL, PI_ERROR, "Mask width > 32", EXPFILL }},
		{ &ei_dhcp_option125_enterprise_malformed, { "dhcp.option.enterprise.malformed", PI_PROTOCOL, PI_ERROR, "no room left in option for enterprise data", EXPFILL }},
		{ &ei_dhcp_option_6RD_malformed, { "dhcp.option.6RD.malformed", PI_PROTOCOL, PI_ERROR, "6RD: malformed option", EXPFILL }},
		{ &ei_dhcp_option82_vi_cl_tag_unknown, { "dhcp.option.option.vi.cl.tag_unknown", PI_PROTOCOL, PI_ERROR, "Unknown tag", EXPFILL }},
		{ &ei_dhcp_option_parse_err, { "dhcp.option.parse_err", PI_PROTOCOL, PI_ERROR, "Parse error", EXPFILL }},
		{ &ei_dhcp_nonstd_option_data, { "dhcp.option.nonstd_data", PI_PROTOCOL, PI_NOTE, "Non standard compliant option data", EXPFILL }},
		{ &ei_dhcp_suboption_invalid, { "dhcp.suboption_invalid", PI_PROTOCOL, PI_ERROR, "Invalid suboption", EXPFILL }},
		{ &ei_dhcp_secs_le, { "dhcp.secs_le", PI_PROTOCOL, PI_NOTE, "Seconds elapsed appears to be encoded as little-endian", EXPFILL }},
		{ &ei_dhcp_end_option_missing, { "dhcp.end_option_missing", PI_PROTOCOL, PI_ERROR, "End option missing", EXPFILL }},
		{ &ei_dhcp_client_address_not_given, { "dhcp.client_address_not_given", PI_PROTOCOL, PI_NOTE, "Client address not given", EXPFILL }},
		{ &ei_dhcp_server_name_overloaded_by_dhcp, { "dhcp.server_name_overloaded_by_dhcp", PI_PROTOCOL, PI_NOTE, "Server name option overloaded by DHCP", EXPFILL }},
		{ &ei_dhcp_boot_filename_overloaded_by_dhcp, { "dhcp.boot_filename_overloaded_by_dhcp", PI_PROTOCOL, PI_NOTE, "Boot file name option overloaded by DHCP", EXPFILL }},
		{ &ei_dhcp_option_isns_ignored_bitfield, { "dhcp.option.isns.ignored_bitfield", PI_PROTOCOL, PI_NOTE, "Enabled field is not set - non-zero bitmask ignored", EXPFILL }},
		{ &ei_dhcp_option242_avaya_l2qvlan_invalid, { "dhcp.option.vendor.avaya.l2qvlan.invalid", PI_PROTOCOL, PI_ERROR, "Option 242 (L2QVLAN) invalid", EXPFILL }},
		{ &ei_dhcp_option242_avaya_vlantest_invalid, { "dhcp.option.vendor.avaya.vlantest.invalid", PI_PROTOCOL, PI_ERROR, "Option 242 (avaya vlantest) invalid", EXPFILL }},
		{ &ei_dhcp_option93_client_arch_ambiguous, { "dhcp.option.client_architecture.ambiguous", PI_PROTOCOL, PI_WARN, "Client Architecture ID may be ambiguous", EXPFILL }},
	};

	static tap_param dhcp_stat_params[] = {
		{ PARAM_FILTER, "filter", "Filter", NULL, TRUE }
	};

	static stat_tap_table_ui dhcp_stat_table = {
		REGISTER_PACKET_STAT_GROUP_UNSORTED,
		"DHCP (BOOTP) Statistics",
		"dhcp",
		"dhcp,stat",
		dhcp_stat_init,
		dhcp_stat_packet,
		dhcp_stat_reset,
		NULL,
		NULL,
		sizeof(dhcp_stat_fields)/sizeof(stat_tap_table_item), dhcp_stat_fields,
		sizeof(dhcp_stat_params)/sizeof(tap_param), dhcp_stat_params,
		NULL,
		0
	};

	module_t *dhcp_module;
	expert_module_t* expert_dhcp;

	proto_dhcp = proto_register_protocol("Dynamic Host Configuration Protocol", "DHCP/BOOTP", "dhcp");
	proto_register_field_array(proto_dhcp, hf, array_length(hf));
	proto_register_alias(proto_dhcp, "bootp");
	proto_register_subtree_array(ett, array_length(ett));
	dhcp_bootp_tap = register_tap("dhcp");

	expert_dhcp = expert_register_protocol(proto_dhcp);
	expert_register_field_array(expert_dhcp, ei, array_length(ei));

	dhcp_option_table = register_dissector_table("dhcp.option", "BOOTP Options", proto_dhcp, FT_UINT8, BASE_DEC);
	dhcp_vendor_id_subdissector = register_heur_dissector_list("dhcp.vendor_id", proto_dhcp);
	dhcp_vendor_info_subdissector = register_heur_dissector_list("dhcp.vendor_info", proto_dhcp);
	dhcp_enterprise_table = register_dissector_table("dhcp.enterprise", "V-I Vendor Specific Enterprise", proto_dhcp, FT_UINT32, BASE_DEC);

	/* register init/cleanup routine to handle the custom dhcp options */
	register_init_routine(&dhcp_init_protocol);
	register_cleanup_routine(&dhcp_cleanup_protocol);

	/* Allow dissector to find be found by name. */
	dhcp_handle = register_dissector("dhcp", dissect_dhcp, proto_dhcp);

	dhcp_module = prefs_register_protocol(proto_dhcp, NULL);

	prefs_register_bool_preference(dhcp_module, "novellserverstring",
				       "Decode Option 85 as String",
				       "Novell Servers option 85 can be configured as a string instead of address",
				       &novell_string);

	prefs_register_enum_preference(dhcp_module, "pkt.ccc.protocol_version",
				       "PacketCable CCC protocol version",
				       "The PacketCable CCC protocol version",
				       &pkt_ccc_protocol_version,
				       pkt_ccc_protocol_versions,
				       FALSE);

	prefs_register_uint_preference(dhcp_module, "pkt.ccc.option",
				       "PacketCable CCC option",
				       "Option Number for PacketCable CableLabs Client Configuration",
				       10,
				       &pkt_ccc_option);

	prefs_register_enum_preference(dhcp_module, "uuid.endian",
				       "Endianness of UUID",
				       "Endianness applied to UUID fields",
				       &dhcp_uuid_endian,
				       dhcp_uuid_endian_vals,
				       FALSE);

	prefs_register_enum_preference(dhcp_module, "secs.endian",
				       "Endianness of seconds elapsed field",
				       "Endianness applied to seconds elapsed field",
				       &dhcp_secs_endian,
				       dhcp_secs_endian_vals,
				       FALSE);

	prefs_register_obsolete_preference(dhcp_module, "displayasstring");

	dhcp_uat = uat_new("Custom DHCP/BootP Options (Excl. suboptions)",
			sizeof(uat_dhcp_record_t), /* record size	     */
			"custom_bootp",		   /* filename		     */
			TRUE,			   /* from_profile	     */
			&uat_dhcp_records,	   /* data_ptr		     */
			&num_dhcp_records_uat,	   /* numitems_ptr	     */
			UAT_AFFECTS_DISSECTION,	   /* affects dissection of packets, but not set of named fields */
			NULL,			   /* help		     */
			uat_dhcp_record_copy_cb,   /* copy callback	     */
			uat_dhcp_record_update_cb, /* update callback	     */
			uat_dhcp_record_free_cb,   /* free callback	     */
			NULL,			   /* post update callback   */
			NULL,			   /* reset callback	 */
			dhcp_uat_flds);		   /* UAT field definitions  */

	prefs_register_uat_preference(dhcp_module,
				      "custom_dhcp_table",
				      "Custom DHCP/BootP Options (Excl. suboptions)",
				      "Custom DHCP/BootP Options (Excl. suboptions)",
				      dhcp_uat);

	register_stat_tap_table_ui(&dhcp_stat_table);
}

void
proto_reg_handoff_dhcp(void)
{
	range_t *dhcpopt_basictype_range;

	dissector_add_uint_range_with_preference("udp.port", DHCP_UDP_PORT_RANGE, dhcp_handle);

	/* Create dissection function handles for all DHCP/BOOTP options */
	dhcpopt_basic_handle = create_dissector_handle( dissect_dhcpopt_basic_type, proto_dhcp );
	range_convert_str(wmem_epan_scope(), &dhcpopt_basictype_range, DHCP_OPTION_BASICTYPE_RANGE, 0xFF);
	dissector_add_uint_range("dhcp.option", dhcpopt_basictype_range, dhcpopt_basic_handle);

	dissector_add_uint("dhcp.option", 21, create_dissector_handle( dissect_dhcpopt_policy_filter, proto_dhcp ));
	dissector_add_uint("dhcp.option", 33, create_dissector_handle( dissect_dhcpopt_static_route, proto_dhcp ));
	dissector_add_uint("dhcp.option", 43, create_dissector_handle( dissect_dhcpopt_vendor_specific_info, proto_dhcp ));
	dissector_add_uint("dhcp.option", 52, create_dissector_handle( dissect_dhcpopt_option_overload, proto_dhcp ));
	dissector_add_uint("dhcp.option", 53, create_dissector_handle( dissect_dhcpopt_dhcp, proto_dhcp ));
	dissector_add_uint("dhcp.option", 55, create_dissector_handle( dissect_dhcpopt_param_request_list, proto_dhcp ));
	dissector_add_uint("dhcp.option", 60, create_dissector_handle( dissect_dhcpopt_vendor_class_identifier, proto_dhcp ));
	dissector_add_uint("dhcp.option", 61, create_dissector_handle( dissect_dhcpopt_client_identifier, proto_dhcp ));
	dissector_add_uint("dhcp.option", 63, create_dissector_handle( dissect_dhcpopt_netware_ip, proto_dhcp ));
	dissector_add_uint("dhcp.option", 77, create_dissector_handle( dissect_dhcpopt_user_class_information, proto_dhcp ));
	dissector_add_uint("dhcp.option", 78, create_dissector_handle( dissect_dhcpopt_slp_directory_agent, proto_dhcp ));
	dissector_add_uint("dhcp.option", 79, create_dissector_handle( dissect_dhcpopt_slp_service_scope, proto_dhcp ));
	dissector_add_uint("dhcp.option", 81, create_dissector_handle( dissect_dhcpopt_client_full_domain_name, proto_dhcp ));
	dissector_add_uint("dhcp.option", 82, create_dissector_handle( dissect_dhcpopt_relay_agent_info, proto_dhcp ));
	dissector_add_uint("dhcp.option", 83, create_dissector_handle( dissect_dhcpopt_isns, proto_dhcp ));
	dissector_add_uint("dhcp.option", 85, create_dissector_handle( dissect_dhcpopt_novell_servers, proto_dhcp ));
	dissector_add_uint("dhcp.option", 90, create_dissector_handle( dissect_dhcpopt_dhcp_authentication, proto_dhcp ));
	dissector_add_uint("dhcp.option", 93, create_dissector_handle( dissect_dhcpopt_client_architecture, proto_dhcp ));
	dissector_add_uint("dhcp.option", 94, create_dissector_handle( dissect_dhcpopt_client_network_interface_id, proto_dhcp ));
	dissector_add_uint("dhcp.option", 97, create_dissector_handle( dissect_dhcpopt_client_identifier_uuid, proto_dhcp ));
	dissector_add_uint("dhcp.option", 99, create_dissector_handle( dissect_dhcpopt_civic_location, proto_dhcp ));
	dissector_add_uint("dhcp.option", 114, create_dissector_handle( dissect_dhcpopt_dhcp_captive_portal, proto_dhcp ));
	dissector_add_uint("dhcp.option", 117, create_dissector_handle( dissect_dhcpopt_name_server_search, proto_dhcp ));
	dissector_add_uint("dhcp.option", 119, create_dissector_handle( dissect_dhcpopt_dhcp_domain_search, proto_dhcp ));
	dissector_add_uint("dhcp.option", 120, create_dissector_handle( dissect_dhcpopt_sip_servers, proto_dhcp ));
	dissector_add_uint("dhcp.option", 121, create_dissector_handle( dissect_dhcpopt_classless_static_route, proto_dhcp ));
	/* The PacketCable CCC option number can vary. Still handled through preference */
	dissector_add_uint("dhcp.option", 122, create_dissector_handle( dissect_dhcpopt_packetcable_ccc, proto_dhcp ));

	dissector_add_uint("dhcp.option", 123, create_dissector_handle( dissect_dhcpopt_coordinate_based_location, proto_dhcp ));
	dissector_add_uint("dhcp.option", 124, create_dissector_handle( dissect_dhcpopt_vi_vendor_class, proto_dhcp ));
	dissector_add_uint("dhcp.option", 125, create_dissector_handle( dissect_dhcpopt_vi_vendor_specific_info, proto_dhcp ));
	dissector_add_uint("dhcp.option", 145, create_dissector_handle( dissect_dhcpopt_forcerenew_nonce, proto_dhcp ));
	dissector_add_uint("dhcp.option", 146, create_dissector_handle( dissect_dhcpopt_rdnss, proto_dhcp ));
	dissector_add_uint("dhcp.option", 151, create_dissector_handle( dissect_dhcpopt_bulk_lease_status_code, proto_dhcp ));
	dissector_add_uint("dhcp.option", 152, create_dissector_handle( dissect_dhcpopt_bulk_lease_base_time, proto_dhcp ));
	dissector_add_uint("dhcp.option", 154, create_dissector_handle( dissect_dhcpopt_bulk_lease_query_start, proto_dhcp ));
	dissector_add_uint("dhcp.option", 155, create_dissector_handle( dissect_dhcpopt_bulk_lease_query_end, proto_dhcp ));
	dissector_add_uint("dhcp.option", 158, create_dissector_handle( dissect_dhcpopt_pcp_server, proto_dhcp ));
	dissector_add_uint("dhcp.option", 159, create_dissector_handle( dissect_dhcpopt_portparams, proto_dhcp ));
	dissector_add_uint("dhcp.option", 160, create_dissector_handle( dissect_dhcpopt_dhcp_captive_portal, proto_dhcp ));
	dissector_add_uint("dhcp.option", 212, create_dissector_handle( dissect_dhcpopt_6RD_option, proto_dhcp ));
	dissector_add_uint("dhcp.option", 242, create_dissector_handle( dissect_dhcpopt_avaya_ip_telephone, proto_dhcp ));
	dissector_add_uint("dhcp.option", 249, create_dissector_handle( dissect_dhcpopt_classless_static_route, proto_dhcp ));

	/* Create heuristic dissection for DHCP vendor class id */
	heur_dissector_add( "dhcp.vendor_id", dissect_packetcable_mta_vendor_id_heur, "PacketCable MTA", "packetcable_mta_dhcp", proto_dhcp, HEURISTIC_ENABLE );
	heur_dissector_add( "dhcp.vendor_id", dissect_packetcable_cm_vendor_id_heur, "PacketCable CM", "packetcable_cm_dhcp", proto_dhcp, HEURISTIC_ENABLE );
	heur_dissector_add( "dhcp.vendor_id", dissect_apple_bsdp_vendor_id_heur, "Apple BSDP", "apple_bsdp_dhcp", proto_dhcp, HEURISTIC_ENABLE );

	/* Create heuristic dissection for DHCP vendor specific information */

	/* Note that this is a rather weak (permissive) heuristic,
	   it's put first so it ends up at the end of the list, I guess this is OK.
	   Add any stronger (less permissive) heuristics after this!
	   XXX - Should we just disable by default? */
	heur_dissector_add( "dhcp.vendor_info", dissect_alcatel_lucent_vendor_info_heur, "Alcatel-Lucent", "alcatel_lucent_dhcp", proto_dhcp, HEURISTIC_ENABLE );

	heur_dissector_add( "dhcp.vendor_info", dissect_pxeclient_vendor_info_heur, "PXEClient", "pxeclient_dhcp", proto_dhcp, HEURISTIC_ENABLE );
	heur_dissector_add( "dhcp.vendor_info", dissect_cablelabs_vendor_info_heur, "CableLabs", "cablelabs_dhcp", proto_dhcp, HEURISTIC_ENABLE );
	heur_dissector_add( "dhcp.vendor_info", dissect_aruba_ap_vendor_info_heur, ARUBA_AP, "aruba_ap_dhcp", proto_dhcp, HEURISTIC_ENABLE );
	heur_dissector_add( "dhcp.vendor_info", dissect_aruba_instant_ap_vendor_info_heur, ARUBA_INSTANT_AP, "aruba_instant_ap_dhcp", proto_dhcp, HEURISTIC_ENABLE );
	heur_dissector_add( "dhcp.vendor_info", dissect_apple_bsdp_vendor_info_heur, "Apple BSDP", "apple_bsdp_info_dhcp", proto_dhcp, HEURISTIC_ENABLE );
	heur_dissector_add( "dhcp.vendor_info", dissect_aerohive_vendor_info_heur, "AEROHIVE", "aerohive_info_dhcp", proto_dhcp, HEURISTIC_ENABLE );
	heur_dissector_add( "dhcp.vendor_info", dissect_cisco_vendor_info_heur, "Cisco", "cisco_info_dhcp", proto_dhcp, HEURISTIC_ENABLE );

	/* Create dissection function handles for DHCP Enterprise dissection */
	dissector_add_uint("dhcp.enterprise", 4491, create_dissector_handle( dissect_vendor_cl_suboption, proto_dhcp ));
	dissector_add_uint("dhcp.enterprise", 3561, create_dissector_handle( dissect_vendor_tr111_suboption, proto_dhcp ));
}

/*
 * Editor modelines  -	https://www.wireshark.org/tools/modelines.html
 *
 * Local variables:
 * c-basic-offset: 8
 * tab-width: 8
 * indent-tabs-mode: t
 * End:
 *
 * vi: set shiftwidth=8 tabstop=8 noexpandtab:
 * :indentSize=8:tabSize=8:noTabs=false:
 */